diff --git a/examples/Feedback/feedback.pro b/examples/Feedback/feedback.pro
new file mode 100644
index 0000000000000000000000000000000000000000..93305120e00d54a377bf0a0ee75bcc2fe7586ab0
--- /dev/null
+++ b/examples/Feedback/feedback.pro
@@ -0,0 +1,22 @@
+base = 'Feedback'
+inf = 'Feedback_003.hdf5'
+
+blast = [0.5,0.5,0.5] ; location of blast
+pos = h5rd(inf,'PartType0/Coordinates')
+vel = h5rd(inf,'PartType0/Velocities')
+rho = h5rd(inf,'PartType0/Density')
+utherm = h5rd(inf,'PartType0/InternalEnergy')
+
+; shift to centre
+for ic=0,2 do pos[ic,*] = pos[ic,*] - blast[ic]
+
+;; distnace from centre
+dist = fltarr(n_elements(rho))
+for ic=0,2 do dist = dist + pos[ic,*]^2
+dist = sqrt(dist)
+
+; radial velocity
+vr = fltarr(n_elements(rho))
+for ic=0,2 do vr = vr + pos[ic,*]*vel[ic,*]
+vr = vr / dist
+end
diff --git a/examples/Feedback/feedback.yml b/examples/Feedback/feedback.yml
new file mode 100644
index 0000000000000000000000000000000000000000..74d2445973db9be6a955efe9be5be86705c25bc1
--- /dev/null
+++ b/examples/Feedback/feedback.yml
@@ -0,0 +1,44 @@
+# Define the system of units to use internally.
+InternalUnitSystem:
+ UnitMass_in_cgs: 1 # Grams
+ UnitLength_in_cgs: 1 # Centimeters
+ UnitVelocity_in_cgs: 1 # Centimeters per second
+ UnitCurrent_in_cgs: 1 # Amperes
+ UnitTemp_in_cgs: 1 # Kelvin
+
+# Parameters governing the time integration
+TimeIntegration:
+ time_begin: 0. # The starting time of the simulation (in internal units).
+ time_end: 5e-2 # The end time of the simulation (in internal units).
+ dt_min: 1e-7 # The minimal time-step size of the simulation (in internal units).
+ dt_max: 1e-4 # The maximal time-step size of the simulation (in internal units).
+
+# Parameters governing the snapshots
+Snapshots:
+ basename: Feedback # Common part of the name of output files
+ time_first: 0. # Time of the first output (in internal units)
+ delta_time: 1e-2 # Time difference between consecutive outputs (in internal units)
+
+# Parameters governing the conserved quantities statistics
+Statistics:
+ delta_time: 1e-3 # Time between statistics output
+
+# Parameters for the hydrodynamics scheme
+SPH:
+ resolution_eta: 1.2348 # Target smoothing length in units of the mean inter-particle separation (1.2348 == 48Ngbs with the cubic spline kernel).
+ delta_neighbours: 0.1 # The tolerance for the targetted number of neighbours.
+ max_smoothing_length: 0.1 # Maximal smoothing length allowed (in internal units).
+ CFL_condition: 0.1 # Courant-Friedrich-Levy condition for time integration.
+
+# Parameters related to the initial conditions
+InitialConditions:
+ file_name: ./Feedback.hdf5 # The file to read
+
+# Parameters for feedback
+
+SN:
+ time: 0.001
+ energy: 1.0
+ x: 0.5
+ y: 0.5
+ z: 0.5
diff --git a/examples/Feedback/getGlass.sh b/examples/Feedback/getGlass.sh
new file mode 100755
index 0000000000000000000000000000000000000000..d5c5f590ac37c9c9431d626a2ea61b0c12c1513c
--- /dev/null
+++ b/examples/Feedback/getGlass.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+wget http://virgodb.cosma.dur.ac.uk/swift-webstorage/ICs/glassCube_64.hdf5
diff --git a/examples/Feedback/log b/examples/Feedback/log
new file mode 100644
index 0000000000000000000000000000000000000000..94225c1110423b6f2b4ba6fed47f33ec4743a4b6
--- /dev/null
+++ b/examples/Feedback/log
@@ -0,0 +1,468 @@
+ Welcome to the cosmological hydrodynamical code
+ ______ _________________
+ / ___/ | / / _/ ___/_ __/
+ \__ \| | /| / // // /_ / /
+ ___/ /| |/ |/ // // __/ / /
+ /____/ |__/|__/___/_/ /_/
+ SPH With Inter-dependent Fine-grained Tasking
+
+ Version : 0.3.0
+ Revision: v0.3.0-639-g352f3fa0-dirty, Branch: TTFeedback
+ Webpage : www.swiftsim.com
+
+ Compiler: ICC, Version: 16.0.20160415
+ HDF5 library version: 1.8.14
+
+[00000.0] main: CPU frequency used for tick conversion: 1994987486 Hz
+[00000.0] main: sizeof(struct part) is 128 bytes.
+[00000.0] main: sizeof(struct xpart) is 32 bytes.
+[00000.0] main: sizeof(struct gpart) is 96 bytes.
+[00000.0] main: sizeof(struct task) is 96 bytes.
+[00000.0] main: sizeof(struct cell) is 640 bytes.
+[00000.0] main: Reading runtime parameters from file 'feedback.yml'
+[00000.0] source_terms_print: Single SNe of energy= 1.000000e+00 will explode at time= 1.000000e-03 at location (5.000000e-01,5.000000e-01,5.000000e-01)
+[00000.0] main: Reading ICs from file './Feedback.hdf5'
+[00000.0] read_ic_single: IC and internal units match. No conversion needed.
+[00000.0] main: Reading initial conditions took 22.088 ms.
+[00000.0] main: Read 32768 gas particles and 0 gparts from the ICs.
+[00000.0] main: space_init took 2.955 ms.
+[00000.0] main: space dimensions are [ 1.000 1.000 1.000 ].
+[00000.0] main: space is periodic.
+[00000.0] main: highest-level cell dimensions are [ 10 10 10 ].
+[00000.0] main: 32768 parts in 1000 cells.
+[00000.0] main: 0 gparts in 1000 cells.
+[00000.0] main: maximum depth is 0.
+[00000.0] engine_init: no processor affinity used
+[00000.1] engine_policy: engine policies are [ steal keep numa_affinity hydro sourceterms ]
+[00000.1] hydro_props_print: Adiabatic index gamma: 1.666667.
+[00000.1] hydro_props_print: Hydrodynamic scheme: Gadget-2 version of SPH (Springel 2005) in 3D.
+[00000.1] hydro_props_print: Hydrodynamic kernel: Cubic spline (M4) with 48.00 +/- 0.10 neighbours (eta=1.234800).
+[00000.1] hydro_props_print: Hydrodynamic integration: CFL parameter: 0.1000.
+[00000.1] hydro_props_print: Hydrodynamic integration: Max change of volume: 2.00 (max|dlog(h)/dt|=0.231049).
+[00000.1] engine_init: Absolute minimal timestep size: 1.862645e-10
+[00000.1] engine_init: Minimal timestep size (on time-line): 9.536743e-08
+[00000.1] engine_init: Maximal timestep size (on time-line): 9.765625e-05
+[00000.1] main: engine_init took 6.579 ms.
+[00000.1] main: Running on 32768 gas particles and 0 DM particles from t=0.000e+00 until t=5.000e-02 with 1 threads and 1 queues (dt_min=1.000e-07, dt_max=1.000e-04)...
+[00000.1] engine_init_particles: Running initialisation fake time-step.
+# Step Time Time-step Updates g-Updates Wall-clock time [ms]
+ 0 0.000000e+00 0.000000e+00 0 0 1048.558
+ 1 9.765625e-05 9.765625e-05 32768 0 955.300
+ 2 1.953125e-04 9.765625e-05 32768 0 1260.160
+ 3 2.929688e-04 9.765625e-05 32768 0 1261.074
+ 4 3.906250e-04 9.765625e-05 32768 0 1240.943
+ 5 4.882812e-04 9.765625e-05 32768 0 1204.562
+ 6 5.859375e-04 9.765625e-05 32768 0 1173.909
+ 7 6.835938e-04 9.765625e-05 32768 0 1146.211
+ 8 7.812500e-04 9.765625e-05 32768 0 1130.690
+ 9 8.789063e-04 9.765625e-05 32768 0 1136.483
+ 10 9.765625e-04 9.765625e-05 32768 0 1113.689
+[00013.9] do_supernova_feedback: u_old= 1.500000e-06 u_new= 3.276800e+04 S_old= 9.973413e-07 S_new= 2.178725e+04 rho= 1.004002e+00
+[00013.9] do_supernova_feedback: p->s 2.178725e+04
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+ 14 1.220703e-03 4.882813e-05 32768 0 1099.410
+ 15 1.269531e-03 4.882813e-05 57 0 27.786
+ 16 1.318359e-03 4.882813e-05 32768 0 1092.165
+ 17 1.367188e-03 4.882813e-05 57 0 29.624
+ 18 1.416016e-03 4.882813e-05 32768 0 1083.173
+ 19 1.464844e-03 4.882813e-05 81 0 28.283
+ 20 1.513672e-03 4.882813e-05 32768 0 1080.139
+ 21 1.562500e-03 4.882813e-05 81 0 89.744
+ 22 1.611328e-03 4.882813e-05 32768 0 1119.688
+ 23 1.660156e-03 4.882813e-05 80 0 30.407
+ 24 1.708984e-03 4.882813e-05 32768 0 1066.095
+ 25 1.757813e-03 4.882813e-05 80 0 28.911
+ 26 1.806641e-03 4.882813e-05 32768 0 1174.870
+ 27 1.855469e-03 4.882813e-05 92 0 34.274
+ 28 1.904297e-03 4.882813e-05 32768 0 1063.577
+ 29 1.953125e-03 4.882813e-05 92 0 30.317
+ 30 2.001953e-03 4.882813e-05 32768 0 1063.683
+ 31 2.050781e-03 4.882813e-05 108 0 26.311
+ 32 2.099609e-03 4.882813e-05 32768 0 1188.527
+ 33 2.148438e-03 4.882813e-05 114 0 27.428
+ 34 2.197266e-03 4.882813e-05 32768 0 1080.263
+ 35 2.246094e-03 4.882813e-05 42 0 19.459
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+ 415 3.750000e-02 9.765625e-05 32768 0 1097.219
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+ 417 3.769531e-02 9.765625e-05 32768 0 1091.543
diff --git a/examples/Feedback/makeIC.py b/examples/Feedback/makeIC.py
new file mode 100644
index 0000000000000000000000000000000000000000..d494a99e456d11019aae1450233125ffaf07f7ad
--- /dev/null
+++ b/examples/Feedback/makeIC.py
@@ -0,0 +1,108 @@
+###############################################################################
+ # This file is part of SWIFT.
+ # Copyright (c) 2013 Pedro Gonnet (pedro.gonnet@durham.ac.uk),
+ # Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ #
+ # This program is free software: you can redistribute it and/or modify
+ # it under the terms of the GNU Lesser General Public License as published
+ # by the Free Software Foundation, either version 3 of the License, or
+ # (at your option) any later version.
+ #
+ # This program is distributed in the hope that it will be useful,
+ # but WITHOUT ANY WARRANTY; without even the implied warranty of
+ # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ # GNU General Public License for more details.
+ #
+ # You should have received a copy of the GNU Lesser General Public License
+ # along with this program. If not, see <http://www.gnu.org/licenses/>.
+ #
+ ##############################################################################
+
+import h5py
+import sys
+from numpy import *
+
+# Generates a swift IC file containing a cartesian distribution of particles
+# at a constant density and pressure in a cubic box
+
+# Parameters
+periodic= 1 # 1 For periodic box
+boxSize = 1.
+L = int(sys.argv[1]) # Number of particles along one axis
+rho = 1. # Density
+P = 1.e-6 # Pressure
+gamma = 5./3. # Gas adiabatic index
+eta = 1.2349 # 48 ngbs with cubic spline kernel
+fileName = "Feedback.hdf5"
+
+#---------------------------------------------------
+numPart = L**3
+mass = boxSize**3 * rho / numPart
+internalEnergy = P / ((gamma - 1.)*rho)
+
+#--------------------------------------------------
+
+#File
+file = h5py.File(fileName, 'w')
+
+# Header
+grp = file.create_group("/Header")
+grp.attrs["BoxSize"] = boxSize
+grp.attrs["NumPart_Total"] = [numPart, 0, 0, 0, 0, 0]
+grp.attrs["NumPart_Total_HighWord"] = [0, 0, 0, 0, 0, 0]
+grp.attrs["NumPart_ThisFile"] = [numPart, 0, 0, 0, 0, 0]
+grp.attrs["Time"] = 0.0
+grp.attrs["NumFilesPerSnapshot"] = 1
+grp.attrs["MassTable"] = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+grp.attrs["Flag_Entropy_ICs"] = 0
+
+#Runtime parameters
+grp = file.create_group("/RuntimePars")
+grp.attrs["PeriodicBoundariesOn"] = periodic
+
+#Units
+grp = file.create_group("/Units")
+grp.attrs["Unit length in cgs (U_L)"] = 1.
+grp.attrs["Unit mass in cgs (U_M)"] = 1.
+grp.attrs["Unit time in cgs (U_t)"] = 1.
+grp.attrs["Unit current in cgs (U_I)"] = 1.
+grp.attrs["Unit temperature in cgs (U_T)"] = 1.
+
+#Particle group
+grp = file.create_group("/PartType0")
+
+v = zeros((numPart, 3))
+ds = grp.create_dataset('Velocities', (numPart, 3), 'f')
+ds[()] = v
+v = zeros(1)
+
+m = full((numPart, 1), mass)
+ds = grp.create_dataset('Masses', (numPart,1), 'f')
+ds[()] = m
+m = zeros(1)
+
+h = full((numPart, 1), eta * boxSize / L)
+ds = grp.create_dataset('SmoothingLength', (numPart,1), 'f')
+ds[()] = h
+h = zeros(1)
+
+u = full((numPart, 1), internalEnergy)
+ds = grp.create_dataset('InternalEnergy', (numPart,1), 'f')
+ds[()] = u
+u = zeros(1)
+
+
+ids = linspace(0, numPart, numPart, endpoint=False).reshape((numPart,1))
+ds = grp.create_dataset('ParticleIDs', (numPart, 1), 'L')
+ds[()] = ids + 1
+x = ids % L;
+y = ((ids - x) / L) % L;
+z = (ids - x - L * y) / L**2;
+coords = zeros((numPart, 3))
+coords[:,0] = z[:,0] * boxSize / L + boxSize / (2*L)
+coords[:,1] = y[:,0] * boxSize / L + boxSize / (2*L)
+coords[:,2] = x[:,0] * boxSize / L + boxSize / (2*L)
+ds = grp.create_dataset('Coordinates', (numPart, 3), 'd')
+ds[()] = coords
+
+file.close()
diff --git a/examples/main.c b/examples/main.c
index efd40c3da9802ebfab72a51eb841c035c8490eba..d4a920db0a56066c7f89e172d15094dbfbfd4d28 100644
--- a/examples/main.c
+++ b/examples/main.c
@@ -73,6 +73,8 @@ void print_help_message() {
"Overwrite the CPU frequency (Hz) to be used for time measurements");
printf(" %2s %8s %s\n", "-g", "",
"Run with an external gravitational potential");
+ printf(" %2s %8s %s\n", "-F", "",
+ "Run with feedback ");
printf(" %2s %8s %s\n", "-G", "", "Run with self-gravity");
printf(" %2s %8s %s\n", "-n", "{int}",
"Execute a fixed number of time steps");
@@ -143,6 +145,7 @@ int main(int argc, char *argv[]) {
int nsteps = -2;
int with_cosmology = 0;
int with_external_gravity = 0;
+ int with_sourceterms = 0;
int with_self_gravity = 0;
int with_hydro = 0;
int with_fp_exceptions = 0;
@@ -153,7 +156,7 @@ int main(int argc, char *argv[]) {
/* Parse the parameters */
int c;
- while ((c = getopt(argc, argv, "acdef:gGhn:st:v:y:")) != -1) switch (c) {
+ while ((c = getopt(argc, argv, "acdef:gFGhn:st:v:y:")) != -1) switch (c) {
case 'a':
with_aff = 1;
break;
@@ -178,6 +181,9 @@ int main(int argc, char *argv[]) {
break;
case 'G':
with_self_gravity = 1;
+ break;
+ case 'F':
+ with_sourceterms = 1;
break;
case 'h':
if (myrank == 0) print_help_message();
@@ -335,6 +341,11 @@ int main(int argc, char *argv[]) {
if (with_external_gravity) potential_init(params, &us, &potential);
if (with_external_gravity && myrank == 0) potential_print(&potential);
+ /* Initialise the feedback properties */
+ struct sourceterms sourceterms;
+ if (with_sourceterms) source_terms_init(params, &us, &sourceterms);
+ if (with_sourceterms && myrank == 0) source_terms_print(&sourceterms);
+
/* Read particles and space information from (GADGET) ICs */
char ICfileName[200] = "";
parser_get_param_string(params, "InitialConditions:file_name", ICfileName);
@@ -440,6 +451,7 @@ int main(int argc, char *argv[]) {
if (with_hydro) engine_policies |= engine_policy_hydro;
if (with_self_gravity) engine_policies |= engine_policy_self_gravity;
if (with_external_gravity) engine_policies |= engine_policy_external_gravity;
+ if (with_sourceterms) engine_policies |= engine_policy_sourceterms;
if (with_cosmology) engine_policies |= engine_policy_cosmology;
/* Initialize the engine with the space and policies. */
@@ -447,7 +459,7 @@ int main(int argc, char *argv[]) {
struct engine e;
engine_init(&e, &s, params, nr_nodes, myrank, nr_threads, with_aff,
engine_policies, talking, &us, &prog_const, &hydro_properties,
- &potential);
+ &potential, &sourceterms);
if (myrank == 0) {
clocks_gettime(&toc);
message("engine_init took %.3f %s.", clocks_diff(&tic, &toc),
diff --git a/src/Makefile.am b/src/Makefile.am
index 4d6a67c7569464486a017d8306c3e54730ebb3b2..e1f0235cab7bb6111ab42bf69292fabc88f63fd8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -42,7 +42,8 @@ endif
include_HEADERS = space.h runner.h queue.h task.h lock.h cell.h part.h const.h \
engine.h swift.h serial_io.h timers.h debug.h scheduler.h proxy.h parallel_io.h \
common_io.h single_io.h multipole.h map.h tools.h partition.h clocks.h parser.h \
- physical_constants.h physical_constants_cgs.h potentials.h version.h hydro_properties.h
+ physical_constants.h physical_constants_cgs.h potentials.h version.h hydro_properties.h \
+ sourceterms.h
# Common source files
AM_SOURCES = space.c runner.c queue.c task.c cell.c engine.c \
@@ -50,7 +51,7 @@ AM_SOURCES = space.c runner.c queue.c task.c cell.c engine.c \
units.c common_io.c single_io.c multipole.c version.c map.c \
kernel_hydro.c tools.c part.c partition.c clocks.c parser.c \
physical_constants.c potentials.c hydro_properties.c \
- runner_doiact_fft.c
+ runner_doiact_fft.c sourceterms.c
# Include files for distribution, not installation.
nobase_noinst_HEADERS = approx_math.h atomic.h cycle.h error.h inline.h kernel_hydro.h kernel_gravity.h \
@@ -60,6 +61,7 @@ nobase_noinst_HEADERS = approx_math.h atomic.h cycle.h error.h inline.h kernel_h
gravity.h gravity_io.h \
gravity/Default/gravity.h gravity/Default/gravity_iact.h gravity/Default/gravity_io.h \
gravity/Default/gravity_debug.h gravity/Default/gravity_part.h \
+ sourceterms.h \
hydro.h hydro_io.h \
hydro/Minimal/hydro.h hydro/Minimal/hydro_iact.h hydro/Minimal/hydro_io.h \
hydro/Minimal/hydro_debug.h hydro/Minimal/hydro_part.h \
diff --git a/src/cell.h b/src/cell.h
index 150718eeb4bd3857e37d517718fe53661033a330..a37f5d9e1bfa7108d9908686a966925f751dba97 100644
--- a/src/cell.h
+++ b/src/cell.h
@@ -136,6 +136,9 @@ struct cell {
/* Task for external gravity */
struct task *grav_external;
+ /* Task for source terms */
+ struct task *sourceterms;
+
/* Number of tasks that are associated with this cell. */
int nr_tasks;
diff --git a/src/const.h b/src/const.h
index 6710fe9e52dfdbede468282d84d4441b923a59fe..7f882f828b5df491f6d2f88467b2acc383d8684d 100644
--- a/src/const.h
+++ b/src/const.h
@@ -73,6 +73,9 @@
#define EXTERNAL_POTENTIAL_POINTMASS
//#define EXTERNAL_POTENTIAL_ISOTHERMALPOTENTIAL
+/* Source terms */
+#define SN_FEEDBACK
+
/* Are we debugging ? */
//#define SWIFT_DEBUG_CHECKS
diff --git a/src/engine.c b/src/engine.c
index a980bcbc9c2f42127fb43b30c7d5573a8e9957ef..91a82bab529d250811bf270c5c3d6f587d108e4d 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -68,7 +68,7 @@
#include "units.h"
#include "version.h"
-const char *engine_policy_names[13] = {"none",
+const char *engine_policy_names[14] = {"none",
"rand",
"steal",
"keep",
@@ -80,7 +80,8 @@ const char *engine_policy_names[13] = {"none",
"hydro",
"self_gravity",
"external_gravity",
- "cosmology_integration"};
+ "cosmology_integration",
+ "sourceterms"};
/** The rank of the engine as a global variable (for messages). */
int engine_rank;
@@ -163,6 +164,7 @@ void engine_make_gravity_hierarchical_tasks(struct engine *e, struct cell *c,
if (is_with_external_gravity)
c->grav_external = scheduler_addtask(
s, task_type_grav_external, task_subtype_none, 0, 0, c, NULL, 0);
+
}
}
@@ -191,6 +193,7 @@ void engine_make_hydro_hierarchical_tasks(struct engine *e, struct cell *c,
struct scheduler *s = &e->sched;
const int is_fixdt = (e->policy & engine_policy_fixdt) == engine_policy_fixdt;
+ const int is_with_sourceterms = (e->policy & engine_policy_sourceterms) == engine_policy_sourceterms;
/* Is this the super-cell? */
if (super == NULL && (c->density != NULL || (c->count > 0 && !c->split))) {
@@ -225,6 +228,11 @@ void engine_make_hydro_hierarchical_tasks(struct engine *e, struct cell *c,
/* Generate the ghost task. */
c->ghost = scheduler_addtask(s, task_type_ghost, task_subtype_none, 0, 0,
c, NULL, 0);
+
+ /* add source terms */
+ if (is_with_sourceterms)
+ c->sourceterms = scheduler_addtask(s, task_type_sourceterms, task_subtype_none, 0, 0,
+ c, NULL, 0);
}
}
@@ -1610,6 +1618,10 @@ void engine_make_extra_hydroloop_tasks(struct engine *e) {
else if (t->type == task_type_grav_external) {
scheduler_addunlock(sched, t->ci->init, t);
scheduler_addunlock(sched, t, t->ci->kick);
+ }
+ /* source terms depend on kick (should eventually depend on cooling) */
+ else if (t->type == task_type_sourceterms) {
+ scheduler_addunlock(sched, t->ci->kick, t);
}
}
}
@@ -2602,6 +2614,11 @@ void engine_step(struct engine *e) {
mask |= 1 << task_type_grav_external;
}
+ /* Add the tasks corresponding to sourceterms to the masks */
+ if (e->policy & engine_policy_sourceterms) {
+ mask |= 1 << task_type_sourceterms;
+ }
+
/* Add MPI tasks if need be */
if (e->policy & engine_policy_mpi) {
@@ -2927,7 +2944,8 @@ void engine_init(struct engine *e, struct space *s,
const struct UnitSystem *internal_units,
const struct phys_const *physical_constants,
const struct hydro_props *hydro,
- const struct external_potential *potential) {
+ const struct external_potential *potential,
+ const struct sourceterms *sourceterms) {
/* Clean-up everything */
bzero(e, sizeof(struct engine));
@@ -2976,6 +2994,7 @@ void engine_init(struct engine *e, struct space *s,
e->physical_constants = physical_constants;
e->hydro_properties = hydro;
e->external_potential = potential;
+ e->sourceterms = sourceterms;
e->parameter_file = params;
engine_rank = nodeID;
diff --git a/src/engine.h b/src/engine.h
index d708198c32b67c5118bbd7f4676f1ea0fe821c7d..164b0f1202f8760be92993fc45c280b8e6006d4b 100644
--- a/src/engine.h
+++ b/src/engine.h
@@ -41,6 +41,7 @@
#include "parser.h"
#include "partition.h"
#include "potentials.h"
+#include "sourceterms.h"
#include "runner.h"
#include "scheduler.h"
#include "space.h"
@@ -61,7 +62,8 @@ enum engine_policy {
engine_policy_hydro = (1 << 8),
engine_policy_self_gravity = (1 << 9),
engine_policy_external_gravity = (1 << 10),
- engine_policy_cosmology = (1 << 11)
+ engine_policy_cosmology = (1 << 11),
+ engine_policy_sourceterms = (1 << 12)
};
extern const char *engine_policy_names[];
@@ -204,6 +206,9 @@ struct engine {
/* Properties of external gravitational potential */
const struct external_potential *external_potential;
+ /* Properties of source terms */
+ const struct sourceterms *sourceterms;
+
/* The (parsed) parameter file */
const struct swift_params *parameter_file;
};
@@ -218,7 +223,8 @@ void engine_init(struct engine *e, struct space *s,
const struct UnitSystem *internal_units,
const struct phys_const *physical_constants,
const struct hydro_props *hydro,
- const struct external_potential *potential);
+ const struct external_potential *potential,
+ const struct sourceterms *sourceterms);
void engine_launch(struct engine *e, int nr_runners, unsigned int mask,
unsigned int submask);
void engine_prepare(struct engine *e);
diff --git a/src/equation_of_state.h b/src/equation_of_state.h
index b4a36e8a3ef0bcc281d1f939f89fde08ecf00be9..74cae84b31434a89cd08dae26df69bf85bd43f64 100644
--- a/src/equation_of_state.h
+++ b/src/equation_of_state.h
@@ -40,7 +40,9 @@
/* ------------------------------------------------------------------------- */
#if defined(EOS_IDEAL_GAS)
-
+#if defined(EOS_ISOTHERMAL_GAS)
+#error can't have both!
+#endif
/**
* @brief Returns the internal energy given density and entropy
*
diff --git a/src/hydro/Gadget2/hydro.h b/src/hydro/Gadget2/hydro.h
index d2d4450fa12374a8a8dec624c5e54ba3d47b99aa..41acfc22e242c6fad5cba8cdc5d2aae9611be6f3 100644
--- a/src/hydro/Gadget2/hydro.h
+++ b/src/hydro/Gadget2/hydro.h
@@ -16,7 +16,8 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
-
+#ifndef SWIFT_GADGET_HYDRO_H
+#define SWIFT_GADGET_HYDRO_H
#include "adiabatic_index.h"
#include "dimension.h"
#include "equation_of_state.h"
@@ -361,3 +362,4 @@ __attribute__((always_inline)) INLINE static void hydro_convert_quantities(
/* We read u in the entropy field. We now get S from u */
p->entropy = gas_entropy_from_internal_energy(p->rho, p->entropy);
}
+#endif /* SWIFT_GADGET_HYDRO_H */
diff --git a/src/runner.c b/src/runner.c
index 6e99d8cece2cf086b1209ac2f8314301b9779e20..f8e03fba5c5ba674ca9c911c5fa4dde512dc00dc 100644
--- a/src/runner.c
+++ b/src/runner.c
@@ -47,6 +47,7 @@
#include "engine.h"
#include "error.h"
#include "gravity.h"
+#include "sourceterms.h"
#include "hydro.h"
#include "hydro_properties.h"
#include "kick.h"
@@ -91,6 +92,70 @@ const char runner_flip[27] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
#include "runner_doiact_fft.h"
#include "runner_doiact_grav.h"
+/**
+ * @brief Calculate gravity acceleration from external potential
+ *
+ * @param r runner task
+ * @param c cell
+ * @param timer 1 if the time is to be recorded.
+ */
+void runner_do_sourceterms(struct runner *r, struct cell *c, int timer) {
+
+ struct part *restrict parts = c->parts;
+ const int count = c->count;
+ const double cell_min[3] = {c->loc[0], c->loc[1], c->loc[2]};
+ const double cell_width[3] = {c->width[0], c->width[1], c->width[2]};
+ const int ti_current = r->e->ti_current;
+ const struct sourceterms *sourceterms = r->e->sourceterms;
+ const double location[3] = {sourceterms->supernova.x, sourceterms->supernova.y, sourceterms->supernova.z};
+ const int dimen=3;
+ const double timeBase = r->e->timeBase;
+
+ TIMER_TIC;
+
+ /* Recurse? */
+ if (c->split) {
+ for (int k = 0; k < 8; k++)
+ if (c->progeny[k] != NULL) runner_do_sourceterms(r, c->progeny[k], 0);
+ return;
+ }
+
+ /* does cell contain explosion? */
+ if(count > 0) {
+ const int incell = is_in_cell(cell_min, cell_width, location, dimen);
+ if (incell == 1)
+ {
+
+ /* inject SN energy into particle with highest id, if it is active */
+ int imax = 0;
+ struct part *restrict sn_part;
+ for (int i = 0; i < count; i++) {
+
+ /* Get a direct pointer on the part. */
+ struct part *restrict p = &parts[i];
+ if(p->id > imax)
+ {
+ imax = p->id;
+ sn_part = p;
+ }
+ }
+ /* Is this part within the time step? */
+ if (sn_part->ti_begin == ti_current) {
+
+ /* does this time step sraddle the feedback injecton time? */
+ const float t_begin = sn_part->ti_begin * timeBase;
+ const float t_end = sn_part->ti_end * timeBase;
+ if(t_begin <= sourceterms->supernova.time && t_end > sourceterms->supernova.time)
+ {
+ do_supernova_feedback(sourceterms, sn_part);
+ }
+ }
+ }
+ }
+
+ if (timer) TIMER_TOC(timer_dosource);
+}
+
/**
* @brief Calculate gravity acceleration from external potential
*
@@ -1158,6 +1223,9 @@ void *runner_main(void *data) {
case task_type_grav_external:
runner_do_grav_external(r, t->ci, 1);
break;
+ case task_type_sourceterms:
+ runner_do_sourceterms(r, t->ci, 1);
+ break;
case task_type_part_sort:
space_do_parts_sort();
break;
diff --git a/src/sourceterms.c b/src/sourceterms.c
new file mode 100644
index 0000000000000000000000000000000000000000..a3d32d829a02910ce9d98c6dd14ed905b21e2626
--- /dev/null
+++ b/src/sourceterms.c
@@ -0,0 +1,76 @@
+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2016 Tom Theuns (tom.theuns@durham.ac.uk)
+ * Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+
+/* Config parameters. */
+#include "../config.h"
+
+/* Some standard headers. */
+#include <math.h>
+
+/* Local includes. */
+#include "const.h"
+#include "error.h"
+#include "parser.h"
+#include "part.h"
+#include "physical_constants.h"
+#include "equation_of_state.h"
+#include "units.h"
+
+/* This object's header. */
+#include "sourceterms.h"
+
+/**
+ * @brief Initialises the source terms
+ *
+ * @param parameter_file The parsed parameter file
+ * @param us The current internal system of units
+ * @param sourceterms: the structure that has all the source term properties
+ */
+void source_terms_init(const struct swift_params* parameter_file,
+ struct UnitSystem* us,
+ struct sourceterms* source) {
+
+#ifdef SN_FEEDBACK
+ source->supernova.time = parser_get_param_double(parameter_file, "SN:time");
+ source->supernova.energy = parser_get_param_double(parameter_file, "SN:energy");
+ source->supernova.x = parser_get_param_double(parameter_file, "SN:x");
+ source->supernova.y = parser_get_param_double(parameter_file, "SN:y");
+ source->supernova.z = parser_get_param_double(parameter_file, "SN:z");
+#endif /* SN_FEEDBCK */
+};
+
+/**
+ * @brief Prints the properties of the external potential to stdout.
+ *
+ * @param potential The external potential properties.
+ */
+void source_terms_print(const struct sourceterms* source) {
+
+#ifdef SN_FEEDBACK
+ message(" Single SNe of energy= %e will explode at time= %e at location (%e,%e,%e)",
+ source->supernova.energy, source->supernova.time, source->supernova.x, source->supernova.y, source->supernova.z);
+#endif /* SN_FEEDBACK */
+
+};
+
+__attribute__((always_inline)) INLINE float calculate_entropy(const float entropy_old, const float density, const float u_old, const float u_new)
+{
+ return entropy_old + hydro_gamma_minus_one * (u_new-u_old) * pow_minus_gamma_minus_one(density);
+};
diff --git a/src/sourceterms.h b/src/sourceterms.h
new file mode 100644
index 0000000000000000000000000000000000000000..506aadde82e66d9bc67c5bfe5bccb020d1dc7358
--- /dev/null
+++ b/src/sourceterms.h
@@ -0,0 +1,39 @@
+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Coypright (c) 2015 Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+#ifndef SWIFT_SOURCETERMS_H
+#define SWIFT_SOURCETERMS_H
+
+#include "./const.h"
+/* So far only one model here */
+struct sourceterms
+{
+#ifdef SN_FEEDBACK
+#include "sourceterms/sn_feedback/sn_feedback_struct.h"
+#endif
+};
+
+void source_terms_init(const struct swift_params* parameter_file,
+ struct UnitSystem* us,
+ struct sourceterms* source);
+void source_terms_print(const struct sourceterms* source);
+float calculate_entropy(const float entropy_old, const float density, const float u_old, const float u_new);
+#ifdef SN_FEEDBACK
+#include "sourceterms/sn_feedback/sn_feedback.h"
+#endif
+#endif /* SWIFT_SOURCETERMS_H */
diff --git a/src/sourceterms/Default/sourceterms.h b/src/sourceterms/Default/sourceterms.h
new file mode 100644
index 0000000000000000000000000000000000000000..a31a675fbe36629fe79849691f8d0377626cb5b5
--- /dev/null
+++ b/src/sourceterms/Default/sourceterms.h
@@ -0,0 +1,51 @@
+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Coypright (c) 2015 Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ * 2016 Tom Theuns (tom.theuns@durham.ac.uk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+
+#include <float.h>
+#include "feedback.h"
+
+/**
+ * @brief Computes the feedback time-step of a given particle due to
+ * a source term
+ *
+ * This function only branches towards the potential chosen by the user.
+ *
+ * @param feedback The properties of the source terms.
+ * @param phys_const The physical constants in internal units.
+ * @param g Pointer to the particle data.
+ */
+__attribute__((always_inline)) INLINE static float
+sourceterms_compute_timestep(const struct sourceterms *feedback,
+ const struct phys_const* const phys_const,
+ const struct part* const p){
+ float dt = FLT_MAX;
+#ifdef SN_FEEDBACK
+ dt =
+ fmin(dt, sn_feedback_timestep(feedback, phys_const, p));
+#endif
+}
+__attribute__((always_inline)) INLINE static void feedback(const struct sourceterms *feedback,
+ const struct phys_const* const phys_const,
+ struct part* p)
+#ifdef SN_FEEDBACK
+ sn_feedback(feedback, phys_const, p);
+#endif
+}
+
diff --git a/src/sourceterms/Default/sourceterms_iact.h b/src/sourceterms/Default/sourceterms_iact.h
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/src/sourceterms/sn_feedback/sn_feedback.c b/src/sourceterms/sn_feedback/sn_feedback.c
new file mode 100644
index 0000000000000000000000000000000000000000..ebc9f69c55eb39bf300cef7b10ae157d97da97cb
--- /dev/null
+++ b/src/sourceterms/sn_feedback/sn_feedback.c
@@ -0,0 +1,64 @@
+#error: this file is no longer in use!
+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2016 Tom Theuns (tom.theuns@durham.ac.uk)
+ * Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ * Richard Bower (r.g.bower@durham.ac.uk)
+ * Stefan Arridge (stefan.arridge@durham.ac.uk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+
+/* Config parameters. */
+#include "../config.h"
+#include "../sourceterms.h"
+
+void supernova_feedback_init(const struct swift_params* parameter_file,
+ struct UnitSystem* us,
+ struct supernova* sn){
+ sn.time = parser_get_param_double(parameter_file, "SN:time");
+ sn.energy = parser_get_param_double(parameter_file, "SN:energy");
+ sn.x = parser_get_param_double(parameter_file, "SN:x");
+ sn.y = parser_get_param_double(parameter_file, "SN:y");
+ sn.z = parser_get_param_double(parameter_file, "SN:z");
+}
+
+void supernova_feedback_print(const struct supernova* sn){
+ message(" Single SNe of energy= %e will explode at time= %e at location (%e,%e,%e)",
+ sn.energy, sn.time, sn.x, sn.y, sn.z);
+};
+
+__attribute__((always_inline)) INLINE static void do_supernova_feedback(const struct sourceterms* sourceterms, struct part* p)
+{
+};
+
+__attribute__((always_inline)) INLINE void update_entropy(const sourceterms *sourceterms, struct part* p)
+{
+
+ /*updates the entropy of a particle due to feedback */
+ float u_old;
+ float u_new;
+ float new_entropy;
+ float old_entropy = p->entropy;
+ float rho = p->rho;
+
+ // u_old = old_entropy/(GAMMA_MINUS1) * pow(rho,GAMMA_MINUS1);
+ const float u_old = hydro_get_internal_energy(p,0); // dt = 0 because using current entropy
+ const float u_new = u_old + sourceterms->supernova.energy;
+ const float new_entropy = u_new*pow_minus_gamma_minus_one(-p>rho) * hydro_gamma_minus_one;
+ p->entropy = new_entropy;
+}
+
+
diff --git a/src/sourceterms/sn_feedback/sn_feedback.h b/src/sourceterms/sn_feedback/sn_feedback.h
new file mode 100644
index 0000000000000000000000000000000000000000..16a60c7b6f7bc10af00755281d660df0233e3696
--- /dev/null
+++ b/src/sourceterms/sn_feedback/sn_feedback.h
@@ -0,0 +1,59 @@
+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2016 Tom Theuns (tom.theuns@durham.ac.uk)
+ * Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ * Richard Bower (r.g.bower@durham.ac.uk)
+ * Stefan Arridge (stefan.arridge@durham.ac.uk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+#ifndef SWIFT_SN_FEEDBACK_H
+#define SWIFT_SN_FEEDBACK_H
+#include <float.h>
+#include "equation_of_state.h"
+#include "hydro.h"
+// void do_supernova_feedback(const struct source_terms* source_terms, const struct phys_const* const constants, const struct part* p);
+
+
+/* determine whether location is in cell */
+__attribute__((always_inline)) INLINE static int is_in_cell(const double cell_min[], const double cell_width[], const double location[], const int dimen)
+{
+ for(int i=0; i<dimen; i++){
+ if (cell_min[i] > location[i])
+ return 0;
+ if ( (cell_min[i] + cell_width[i]) <= location[i])
+ return 0;
+ }
+ return 1;
+};
+
+__attribute__((always_inline)) INLINE static void do_supernova_feedback(const struct sourceterms* sourceterms, struct part* p)
+{
+ const float density = p->rho;
+ const float u_old = hydro_get_internal_energy(p,0);
+ const float u_new = u_old + sourceterms->supernova.energy / p->mass;
+ const float entropy_old = gas_entropy_from_internal_energy(density, u_old);
+ const float entropy_new = calculate_entropy(entropy_old, density, u_old, u_new);
+ hydro_set_internal_energy(p, u_new);
+ hydro_set_entropy(p,entropy_new);
+ message(" u_old= %e u_new= %e S_old= %e S_new= %e rho= %e", u_old, u_new, entropy_old, entropy_new, density);
+ message(" p->s %e", p->entropy);
+};
+#endif /* SWIFT_SN_FEEDBACK_H */
+
+
+
+
+
diff --git a/src/sourceterms/sn_feedback/sn_feedback_struct.h b/src/sourceterms/sn_feedback/sn_feedback_struct.h
new file mode 100644
index 0000000000000000000000000000000000000000..fe662e49c77f6870e20a9dc8b34815b4f2ac1f8d
--- /dev/null
+++ b/src/sourceterms/sn_feedback/sn_feedback_struct.h
@@ -0,0 +1,7 @@
+/* sn feedback */
+struct {
+ double time;
+ double energy;
+ double x, y, z;
+ } supernova;
+
diff --git a/src/swift.h b/src/swift.h
index 7e3116c1de8bc8e6cc2f89d0d5cbe9771ffbf33a..6d8d57968f1fd8283044f2dbb753d2943f0d43eb 100644
--- a/src/swift.h
+++ b/src/swift.h
@@ -43,6 +43,7 @@
#include "partition.h"
#include "physical_constants.h"
#include "potentials.h"
+#include "sourceterms.h"
#include "queue.h"
#include "runner.h"
#include "scheduler.h"
diff --git a/src/task.c b/src/task.c
index 13dd47e6cbf68de4ea6cd8ba6b898ee41a06618d..54b9ec5fae4e5d6040eb0f65194e1b4280a0f1a1 100644
--- a/src/task.c
+++ b/src/task.c
@@ -111,6 +111,7 @@ __attribute__((always_inline)) INLINE static enum task_actions task_acts_on(
case task_type_sort:
case task_type_ghost:
+ case task_type_sourceterms:
return task_action_part;
break;
diff --git a/src/task.h b/src/task.h
index a7cbf28c3d1c7bde45102e5ce85e18c5f736e343..a5cf89c9da62a20e3f0e356e81beee26d756255b 100644
--- a/src/task.h
+++ b/src/task.h
@@ -51,6 +51,7 @@ enum task_types {
task_type_grav_mm,
task_type_grav_up,
task_type_grav_external,
+ task_type_sourceterms,
task_type_part_sort,
task_type_gpart_sort,
task_type_split_cell,
diff --git a/src/timers.h b/src/timers.h
index aa8455397daf1e88b709a8332e3ae63694991e94..81a6df3786a0b2e2f423e869fe5b7ae2efd6c009 100644
--- a/src/timers.h
+++ b/src/timers.h
@@ -43,6 +43,7 @@ enum {
timer_dopair_grav_pm,
timer_dopair_grav_pp,
timer_dograv_external,
+ timer_dosource,
timer_dosub_self_density,
timer_dosub_self_force,
timer_dosub_self_grav,