diff --git a/src/common_io.c b/src/common_io.c
index 67326817397118568e060f5dff49421bb32fba4d..7ab96990d30d0731b2b9f13408525d850fb34baa 100644
--- a/src/common_io.c
+++ b/src/common_io.c
@@ -457,6 +457,7 @@ void io_convert_part_f_mapper(void* restrict temp, int N,
const struct io_props props = *((const struct io_props*)extra_data);
const struct part* restrict parts = props.parts;
+ const struct xpart* restrict xparts = props.xparts;
const struct engine* e = props.e;
const size_t dim = props.dimension;
@@ -465,7 +466,8 @@ void io_convert_part_f_mapper(void* restrict temp, int N,
const ptrdiff_t delta = (temp_f - props.start_temp_f) / dim;
for (int i = 0; i < N; i++)
- props.convert_part_f(e, parts + delta + i, &temp_f[i * dim]);
+ props.convert_part_f(e, parts + delta + i, xparts + delta + i,
+ &temp_f[i * dim]);
}
/**
@@ -477,6 +479,7 @@ void io_convert_part_d_mapper(void* restrict temp, int N,
const struct io_props props = *((const struct io_props*)extra_data);
const struct part* restrict parts = props.parts;
+ const struct xpart* restrict xparts = props.xparts;
const struct engine* e = props.e;
const size_t dim = props.dimension;
@@ -485,7 +488,8 @@ void io_convert_part_d_mapper(void* restrict temp, int N,
const ptrdiff_t delta = (temp_d - props.start_temp_d) / dim;
for (int i = 0; i < N; i++)
- props.convert_part_d(e, parts + delta + i, &temp_d[i * dim]);
+ props.convert_part_d(e, parts + delta + i, xparts + delta + i,
+ &temp_d[i * dim]);
}
/**
diff --git a/src/hydro/Gadget2/hydro_io.h b/src/hydro/Gadget2/hydro_io.h
index 5c329e9d7297109c378e04f0e4931a0717e07278..ef1402a32a876212d76a67632bcd694a6685c09d 100644
--- a/src/hydro/Gadget2/hydro_io.h
+++ b/src/hydro/Gadget2/hydro_io.h
@@ -55,18 +55,20 @@ void hydro_read_particles(struct part* parts, struct io_props* list,
UNIT_CONV_DENSITY, parts, rho);
}
-void convert_u(const struct engine* e, const struct part* p, float* ret) {
+void convert_part_u(const struct engine* e, const struct part* p,
+ const struct xpart* xp, float* ret) {
ret[0] = hydro_get_comoving_internal_energy(p);
}
-void convert_P(const struct engine* e, const struct part* p, float* ret) {
+void convert_part_P(const struct engine* e, const struct part* p,
+ const struct xpart* xp, float* ret) {
ret[0] = hydro_get_comoving_pressure(p);
}
void convert_part_pos(const struct engine* e, const struct part* p,
- double* ret) {
+ const struct xpart* xp, double* ret) {
if (e->s->periodic) {
ret[0] = box_wrap(p->x[0], 0.0, e->s->dim[0]);
@@ -79,6 +81,34 @@ void convert_part_pos(const struct engine* e, const struct part* p,
}
}
+void convert_part_vel(const struct engine* e, const struct part* p,
+ const struct xpart* xp, float* ret) {
+
+ const int with_cosmology = (e->policy & engine_policy_cosmology);
+ const struct cosmology* cosmo = e->cosmology;
+ const integertime_t ti_current = e->ti_current;
+ const double time_base = e->time_base;
+
+ const integertime_t ti_beg = get_integer_time_begin(ti_current, p->time_bin);
+ const integertime_t ti_end = get_integer_time_end(ti_current, p->time_bin);
+
+ /* Get time-step since the last kick */
+ float dt_kick_grav, dt_kick_hydro;
+ if (with_cosmology) {
+ dt_kick_grav = cosmology_get_grav_kick_factor(cosmo, ti_beg, ti_current);
+ dt_kick_grav -=
+ cosmology_get_grav_kick_factor(cosmo, ti_beg, (ti_beg + ti_end) / 2);
+ dt_kick_hydro = cosmology_get_hydro_kick_factor(cosmo, ti_beg, ti_current);
+ dt_kick_hydro -=
+ cosmology_get_hydro_kick_factor(cosmo, ti_beg, (ti_beg + ti_end) / 2);
+ } else {
+ dt_kick_grav = (ti_current - ((ti_beg + ti_end) / 2)) * time_base;
+ dt_kick_hydro = (ti_current - ((ti_beg + ti_end) / 2)) * time_base;
+ }
+
+ hydro_get_drifted_velocities(p, xp, dt_kick_hydro, dt_kick_grav, ret);
+}
+
/**
* @brief Specifies which particle fields to write to a dataset
*
@@ -86,16 +116,17 @@ void convert_part_pos(const struct engine* e, const struct part* p,
* @param list The list of i/o properties to write.
* @param num_fields The number of i/o fields to write.
*/
-void hydro_write_particles(const struct part* parts, struct io_props* list,
- int* num_fields) {
+void hydro_write_particles(const struct part* parts, const struct xpart* xparts,
+ struct io_props* list, int* num_fields) {
*num_fields = 9;
/* List what we want to write */
- list[0] = io_make_output_field_convert_part(
- "Coordinates", DOUBLE, 3, UNIT_CONV_LENGTH, parts, convert_part_pos);
- list[1] =
- io_make_output_field("Velocities", FLOAT, 3, UNIT_CONV_SPEED, parts, v);
+ list[0] = io_make_output_field_convert_part("Coordinates", DOUBLE, 3,
+ UNIT_CONV_LENGTH, parts, xparts,
+ convert_part_pos);
+ list[1] = io_make_output_field_convert_part(
+ "Velocities", FLOAT, 3, UNIT_CONV_SPEED, parts, xparts, convert_part_vel);
list[2] =
io_make_output_field("Masses", FLOAT, 1, UNIT_CONV_MASS, parts, mass);
list[3] = io_make_output_field("SmoothingLength", FLOAT, 1, UNIT_CONV_LENGTH,
@@ -108,9 +139,9 @@ void hydro_write_particles(const struct part* parts, struct io_props* list,
io_make_output_field("Density", FLOAT, 1, UNIT_CONV_DENSITY, parts, rho);
list[7] = io_make_output_field_convert_part("InternalEnergy", FLOAT, 1,
UNIT_CONV_ENERGY_PER_UNIT_MASS,
- parts, convert_u);
+ parts, xparts, convert_part_u);
list[8] = io_make_output_field_convert_part(
- "Pressure", FLOAT, 1, UNIT_CONV_PRESSURE, parts, convert_P);
+ "Pressure", FLOAT, 1, UNIT_CONV_PRESSURE, parts, xparts, convert_part_P);
#ifdef DEBUG_INTERACTIONS_SPH
diff --git a/src/io_properties.h b/src/io_properties.h
index 17db123ba8325ede0c7af4e4b005e359cace7a7f..55e128e890b75db2d01911bd3c3b46388b0c6597 100644
--- a/src/io_properties.h
+++ b/src/io_properties.h
@@ -34,9 +34,11 @@ enum DATA_IMPORTANCE { COMPULSORY = 1, OPTIONAL = 0, UNUSED = -1 };
/* Helper typedefs */
typedef void (*conversion_func_part_float)(const struct engine*,
- const struct part*, float*);
+ const struct part*,
+ const struct xpart*, float*);
typedef void (*conversion_func_part_double)(const struct engine*,
- const struct part*, double*);
+ const struct part*,
+ const struct xpart*, double*);
typedef void (*conversion_func_gpart_float)(const struct engine*,
const struct gpart*, float*);
typedef void (*conversion_func_gpart_double)(const struct engine*,
@@ -78,6 +80,7 @@ struct io_props {
/* The particle arrays */
const struct part* parts;
+ const struct xpart* xparts;
const struct gpart* gparts;
/* Are we converting? */
@@ -125,6 +128,7 @@ INLINE static struct io_props io_make_input_field_(
r.field = field;
r.partSize = partSize;
r.parts = NULL;
+ r.xparts = NULL;
r.gparts = NULL;
r.conversion = 0;
r.convert_part_f = NULL;
@@ -179,10 +183,10 @@ INLINE static struct io_props io_make_output_field_(
/**
* @brief Constructs an #io_props (with conversion) from its parameters
*/
-#define io_make_output_field_convert_part(name, type, dim, units, part, \
- convert) \
- io_make_output_field_convert_part_##type(name, type, dim, units, \
- sizeof(part[0]), part, convert)
+#define io_make_output_field_convert_part(name, type, dim, units, part, xpart, \
+ convert) \
+ io_make_output_field_convert_part_##type( \
+ name, type, dim, units, sizeof(part[0]), part, xpart, convert)
/**
* @brief Construct an #io_props from its parameters
@@ -193,6 +197,7 @@ INLINE static struct io_props io_make_output_field_(
* @param units The units of the dataset
* @param partSize The size in byte of the particle
* @param parts The particle array
+ * @param xparts The xparticle array
* @param functionPtr The function used to convert a particle to a float
*
* Do not call this function directly. Use the macro defined above.
@@ -200,7 +205,8 @@ INLINE static struct io_props io_make_output_field_(
INLINE static struct io_props io_make_output_field_convert_part_FLOAT(
const char name[FIELD_BUFFER_SIZE], enum IO_DATA_TYPE type, int dimension,
enum unit_conversion_factor units, size_t partSize,
- const struct part* parts, conversion_func_part_float functionPtr) {
+ const struct part* parts, const struct xpart* xparts,
+ conversion_func_part_float functionPtr) {
struct io_props r;
strcpy(r.name, name);
@@ -211,6 +217,7 @@ INLINE static struct io_props io_make_output_field_convert_part_FLOAT(
r.field = NULL;
r.partSize = partSize;
r.parts = parts;
+ r.xparts = xparts;
r.gparts = NULL;
r.conversion = 1;
r.convert_part_f = functionPtr;
@@ -230,6 +237,7 @@ INLINE static struct io_props io_make_output_field_convert_part_FLOAT(
* @param units The units of the dataset
* @param partSize The size in byte of the particle
* @param parts The particle array
+ * @param xparts The xparticle array
* @param functionPtr The function used to convert a particle to a float
*
* Do not call this function directly. Use the macro defined above.
@@ -237,7 +245,8 @@ INLINE static struct io_props io_make_output_field_convert_part_FLOAT(
INLINE static struct io_props io_make_output_field_convert_part_DOUBLE(
const char name[FIELD_BUFFER_SIZE], enum IO_DATA_TYPE type, int dimension,
enum unit_conversion_factor units, size_t partSize,
- const struct part* parts, conversion_func_part_double functionPtr) {
+ const struct part* parts, const struct xpart* xparts,
+ conversion_func_part_double functionPtr) {
struct io_props r;
strcpy(r.name, name);
@@ -248,6 +257,7 @@ INLINE static struct io_props io_make_output_field_convert_part_DOUBLE(
r.field = NULL;
r.partSize = partSize;
r.parts = parts;
+ r.xparts = xparts;
r.gparts = NULL;
r.conversion = 1;
r.convert_part_f = NULL;
@@ -293,6 +303,7 @@ INLINE static struct io_props io_make_output_field_convert_gpart_FLOAT(
r.field = NULL;
r.partSize = gpartSize;
r.parts = NULL;
+ r.xparts = NULL;
r.gparts = gparts;
r.conversion = 1;
r.convert_part_f = NULL;
@@ -330,6 +341,7 @@ INLINE static struct io_props io_make_output_field_convert_gpart_DOUBLE(
r.field = NULL;
r.partSize = gpartSize;
r.parts = NULL;
+ r.xparts = NULL;
r.gparts = gparts;
r.conversion = 1;
r.convert_part_f = NULL;
diff --git a/src/parallel_io.c b/src/parallel_io.c
index d3f5f8dc36dd63ad1b7cf4d65311751cd15f887b..c2b53f2ba9610d767da230a2ac80d0e5f00878d5 100644
--- a/src/parallel_io.c
+++ b/src/parallel_io.c
@@ -821,9 +821,10 @@ void prepare_file(struct engine* e, const char* baseName, long long N_total[6],
const struct unit_system* internal_units,
const struct unit_system* snapshot_units) {
- struct part* parts = e->s->parts;
- struct gpart* gparts = e->s->gparts;
- struct spart* sparts = e->s->sparts;
+ const struct part* parts = e->s->parts;
+ const struct xpart* xparts = e->s->xparts;
+ const struct gpart* gparts = e->s->gparts;
+ const struct spart* sparts = e->s->sparts;
FILE* xmfFile = 0;
int periodic = e->s->periodic;
int numFiles = 1;
@@ -980,7 +981,7 @@ void prepare_file(struct engine* e, const char* baseName, long long N_total[6],
switch (ptype) {
case swift_type_gas:
- hydro_write_particles(parts, list, &num_fields);
+ hydro_write_particles(parts, xparts, list, &num_fields);
num_fields += chemistry_write_particles(parts, list + num_fields);
break;
@@ -1045,10 +1046,11 @@ void write_output_parallel(struct engine* e, const char* baseName,
const size_t Ngas = e->s->nr_parts;
const size_t Nstars = e->s->nr_sparts;
const size_t Ntot = e->s->nr_gparts;
- struct part* parts = e->s->parts;
- struct gpart* gparts = e->s->gparts;
+ const struct part* parts = e->s->parts;
+ const struct xpart* xparts = e->s->xparts;
+ const struct gpart* gparts = e->s->gparts;
struct gpart* dmparts = NULL;
- struct spart* sparts = e->s->sparts;
+ const struct spart* sparts = e->s->sparts;
/* Number of unassociated gparts */
const size_t Ndm = Ntot > 0 ? Ntot - (Ngas + Nstars) : 0;
@@ -1208,7 +1210,7 @@ void write_output_parallel(struct engine* e, const char* baseName,
case swift_type_gas:
Nparticles = Ngas;
- hydro_write_particles(parts, list, &num_fields);
+ hydro_write_particles(parts, xparts, list, &num_fields);
num_fields += chemistry_write_particles(parts, list + num_fields);
break;
diff --git a/src/serial_io.c b/src/serial_io.c
index aa8d126e4c6f3e19aed7d205c7ced39f7eded6f8..195fb07b49ff202217799575a408efffd0d41c16 100644
--- a/src/serial_io.c
+++ b/src/serial_io.c
@@ -712,10 +712,11 @@ void write_output_serial(struct engine* e, const char* baseName,
const size_t Ntot = e->s->nr_gparts;
int periodic = e->s->periodic;
int numFiles = 1;
- struct part* parts = e->s->parts;
- struct gpart* gparts = e->s->gparts;
+ const struct part* parts = e->s->parts;
+ const struct xpart* xparts = e->s->xparts;
+ const struct gpart* gparts = e->s->gparts;
struct gpart* dmparts = NULL;
- struct spart* sparts = e->s->sparts;
+ const struct spart* sparts = e->s->sparts;
FILE* xmfFile = 0;
/* Number of unassociated gparts */
@@ -962,7 +963,7 @@ void write_output_serial(struct engine* e, const char* baseName,
case swift_type_gas:
Nparticles = Ngas;
- hydro_write_particles(parts, list, &num_fields);
+ hydro_write_particles(parts, xparts, list, &num_fields);
num_fields += chemistry_write_particles(parts, list + num_fields);
break;
diff --git a/src/single_io.c b/src/single_io.c
index 0fecd724908f7ce2779526792ce8512b9236d58e..0b9057dfb24aab52f70ae6f375d383e2a4994697 100644
--- a/src/single_io.c
+++ b/src/single_io.c
@@ -578,10 +578,11 @@ void write_output_single(struct engine* e, const char* baseName,
const size_t Ntot = e->s->nr_gparts;
int periodic = e->s->periodic;
int numFiles = 1;
- struct part* parts = e->s->parts;
- struct gpart* gparts = e->s->gparts;
+ const struct part* parts = e->s->parts;
+ const struct xpart* xparts = e->s->xparts;
+ const struct gpart* gparts = e->s->gparts;
struct gpart* dmparts = NULL;
- struct spart* sparts = e->s->sparts;
+ const struct spart* sparts = e->s->sparts;
/* Number of unassociated gparts */
const size_t Ndm = Ntot > 0 ? Ntot - (Ngas + Nstars) : 0;
@@ -779,7 +780,7 @@ void write_output_single(struct engine* e, const char* baseName,
case swift_type_gas:
N = Ngas;
- hydro_write_particles(parts, list, &num_fields);
+ hydro_write_particles(parts, xparts, list, &num_fields);
num_fields += chemistry_write_particles(parts, list + num_fields);
break;
diff --git a/src/stars/Default/star_io.h b/src/stars/Default/star_io.h
index 96bbdce6d83dc241d05e7dd1754f476dc0b8e5f9..c3dc31096383533e1e15fa65615d2c9aac0f43e3 100644
--- a/src/stars/Default/star_io.h
+++ b/src/stars/Default/star_io.h
@@ -52,7 +52,7 @@ void star_read_particles(struct spart* sparts, struct io_props* list,
* @param list The list of i/o properties to write.
* @param num_fields The number of i/o fields to write.
*/
-void star_write_particles(struct spart* sparts, struct io_props* list,
+void star_write_particles(const struct spart* sparts, struct io_props* list,
int* num_fields) {
/* Say how much we want to read */