Welcome to the cosmological hydrodynamical code
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SPH With Inter-dependent Fine-grained Tasking
Website: www.swiftsim.com
Twitter: @SwiftSimulation
See INSTALL.swift for install instructions.
Usage: swift [OPTION]... PARAMFILE
swift_mpi [OPTION]... PARAMFILE
Valid options are:
-a Pin runners using processor affinity.
-c Run with cosmological time integration.
-C Run with cooling.
-d Dry run. Read the parameter file, allocate memory but does not read
the particles from ICs and exit before the start of time integration.
Allows user to check validy of parameter and IC files as well as memory limits.
-D Always drift all particles even the ones far from active particles. This emulates
Gadget-[23] and GIZMO's default behaviours.
-e Enable floating-point exceptions (debugging mode).
-f {int} Overwrite the CPU frequency (Hz) to be used for time measurements.
-g Run with an external gravitational potential.
-G Run with self-gravity.
-M Reconstruct the multipoles every time-step.
-n {int} Execute a fixed number of time steps. When unset use the time_end parameter to stop.
-P {sec:par:val} Set parameter value and overwrites values read from the parameters file. Can be used more than once.
-s Run with hydrodynamics.
-S Run with stars.
-t {int} The number of threads to use on each MPI rank. Defaults to 1 if not specified.
-T Print timers every time-step.
-v [12] Increase the level of verbosity:
1: MPI-rank 0 writes,
2: All MPI-ranks write.
-y {int} Time-step frequency at which task graphs are dumped.
-h Print this help message and exit.
See the file parameter_example.yml for an example of parameter file.
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swiftsim
Matthieu Schaller authored
Add checks for particles that are at same position and updates to the h_max of top-level cells. Investigating #324 has turned up a couple of issues that we probably should handle better. The first is particles with the same position. These are not allowed. The second is a mismatch between the cells h_max values and those of the particles when running the ghost tasks for the first time and when the initial estimates of h are small, so we get too many top-level cells initially and a regrid is needed (if this isn't done then the particles test to be moved outside their cell and we need to rebuild, even though a rebuild has just been done). This fixes both by reporting an error when particles are found in the same location, and updates the top-level cells h_max to those of the particles (note this must be followed by a regrid as any sub-cells will have the wrong h_max). Also now reports if gparts are at the same location. That is inefficient not a show stopper. See merge request !370
| Name | Last commit | Last update |
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| doc | ||
| examples | ||
| m4 | ||
| src | ||
| tests | ||
| theory | ||
| .clang-format | ||
| .gitignore | ||
| AUTHORS | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| ChangeLog | ||
| INSTALL.swift | ||
| Makefile.am | ||
| NEWS | ||
| README | ||
| autogen.sh | ||
| configure.ac | ||
| format.sh |