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Commit edf8d3a1 authored by Peter W. Draper's avatar Peter W. Draper
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examples/main.c
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− 67
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......@@ -54,11 +54,11 @@ struct profiler prof;
// Usage string.
static const char *const swift_usage[] = {
"swift [options] [[--] param-file]",
"swift [options] param-file",
"swift_mpi [options] [[--] param-file]",
"swift_mpi [options] param-file",
NULL,
"swift [options] [[--] param-file]",
"swift [options] param-file",
"swift_mpi [options] [[--] param-file]",
"swift_mpi [options] param-file",
NULL,
};
// Function to handle multiple -P arguments.
......@@ -179,7 +179,8 @@ int main(int argc, char *argv[]) {
NULL, 0, 0),
OPT_BOOLEAN('c', "cosmology", &with_cosmology,
"Run with cosmological time integration.", NULL, 0, 0),
OPT_BOOLEAN('C', "cooling", &with_cooling, "Run with cooling", NULL, 0, 0),
OPT_BOOLEAN('C', "cooling", &with_cooling, "Run with cooling", NULL, 0,
0),
OPT_BOOLEAN('F', "sourceterms", &with_sourceterms, "", NULL, 0, 0),
OPT_BOOLEAN('g', "external-gravity", &with_external_gravity,
"Run with an external gravitational potential.", NULL, 0, 0),
......@@ -190,48 +191,56 @@ int main(int argc, char *argv[]) {
OPT_BOOLEAN('s', "hydrodynamics", &with_hydro, "Run with hydrodynamics.",
NULL, 0, 0),
OPT_BOOLEAN('S', "stars", &with_stars, "Run with stars", NULL, 0, 0),
OPT_BOOLEAN('x', "velociraptor", &with_structure_finding,
OPT_BOOLEAN('x', "velociraptor", &with_structure_finding,
"Run with structure finding", NULL, 0, 0),
OPT_GROUP("Control options"),
OPT_BOOLEAN('a', "affinity", &with_aff,
"Pin runners using processor affinity.", NULL, 0, 0),
OPT_BOOLEAN('d', "dry-run", &dry_run,
"Dry run. Read the parameter file, allocates memory but "
"does not read the particles from ICs. Exits before the "
"start of time integration. Checks the validity of "
"parameters and IC files as well as memory limits.",
OPT_BOOLEAN('d', "dry-run", &dry_run,
"Dry run. Read the parameter file, allocates memory but does "
"not read the particles from ICs. Exits before the start of "
"time integration. Checks the validity of parameters and IC "
"files as well as memory limits.",
NULL, 0, 0),
OPT_BOOLEAN('D', "drift-all", &with_drift_all, "Always drift all "
"particles even the ones far from active particles. "
"This emulates Gadget-[23] and GIZMO's default behaviours.",
OPT_BOOLEAN('D', "drift-all", &with_drift_all,
"Always drift all "
"particles even the ones far from active particles. This "
"emulates Gadget-[23] and GIZMO's default behaviours.",
NULL, 0, 0),
OPT_BOOLEAN('e', "fpe", &with_fp_exceptions, "Enable floating-point"
"exceptions (debugging mode).", NULL, 0, 0),
OPT_STRING('f', "cpu-frequency", &cpufreqarg, "Overwrite the CPU "
"frequency (Hz) to be used for time measurements.", NULL, 0, 0),
OPT_INTEGER('n', "steps", &nsteps, "Execute a fixed number of time "
OPT_BOOLEAN('e', "fpe", &with_fp_exceptions,
"Enable floating-point exceptions (debugging mode).", NULL, 0,
0),
OPT_STRING('f', "cpu-frequency", &cpufreqarg,
"Overwrite the CPU "
"frequency (Hz) to be used for time measurements.",
NULL, 0, 0),
OPT_INTEGER('n', "steps", &nsteps,
"Execute a fixed number of time "
"steps. When unset use the time_end parameter to stop.",
NULL, 0, 0),
OPT_STRING('o', "output-params", &output_parameters_filename,
OPT_STRING('o', "output-params", &output_parameters_filename,
"Generate a default output parameter file.", NULL, 0, 0),
OPT_STRING('P', "param", &buffer, "Set parameter value, "
"overwriting a value read from the parameter "
"file. Can be used more than once {sec:par:value}.",
OPT_STRING('P', "param", &buffer,
"Set parameter value, "
"overwriting a value read from the parameter file. Can be "
"used more than once {sec:par:value}.",
handle_cmdparam, (intptr_t)&cmdps, 0),
OPT_BOOLEAN('r', "restart", &restart, "Continue using restart files.",
NULL, 0, 0),
OPT_INTEGER('t', "threads", &nr_threads, "The number of threads to "
OPT_INTEGER('t', "threads", &nr_threads,
"The number of threads to "
"use on each MPI rank. Defaults to 1 if not specified.",
NULL, 0, 0),
OPT_INTEGER('T', "timers", &with_verbose_timers,
"Print timers every time-step.", NULL, 0, 0),
OPT_INTEGER('v', "verbose", &verbose, "Run in verbose mode, in MPI "
"mode 2 outputs from all ranks.", NULL, 0, 0),
OPT_INTEGER('y', "task-dumps", &dump_tasks,
"Time-step frequency at which task graphs are dumped.",
"Print timers every time-step.", NULL, 0, 0),
OPT_INTEGER('v', "verbose", &verbose,
"Run in verbose mode, in MPI mode 2 outputs from all ranks.",
NULL, 0, 0),
OPT_INTEGER('Y', "threadpool-dumps", &dump_threadpool,
OPT_INTEGER('y', "task-dumps", &dump_tasks,
"Time-step frequency at which task graphs are dumped.", NULL,
0, 0),
OPT_INTEGER('Y', "threadpool-dumps", &dump_threadpool,
"Time-step frequency at which threadpool tasks are dumped.",
NULL, 0, 0),
};
......@@ -242,55 +251,57 @@ int main(int argc, char *argv[]) {
/* Need a parameter file. */
if (nargs != 1) {
if (myrank == 0) argparse_usage(&argparse);
printf("\nError: no parameter file was supplied.\n");
return 1;
if (myrank == 0) argparse_usage(&argparse);
printf("\nError: no parameter file was supplied.\n");
return 1;
}
param_filename = argv[0];
/* Checks of options. */
#if ! defined(HAVE_SETAFFINITY) || !defined(HAVE_LIBNUMA)
#if !defined(HAVE_SETAFFINITY) || !defined(HAVE_LIBNUMA)
if (with_aff) {
printf("Error: no NUMA support for thread affinity\n");
return 1;
printf("Error: no NUMA support for thread affinity\n");
return 1;
}
#endif
#ifndef HAVE_FE_ENABLE_EXCEPT
if (with_fp_exceptions) {
printf("Error: no support for floating point exceptions\n");
return 1;
printf("Error: no support for floating point exceptions\n");
return 1;
}
#endif
#ifndef HAVE_VELOCIRAPTOR
if (with_structure_finding) {
printf("Error: VELOCIraptor is not available\n");
return 1;
printf("Error: VELOCIraptor is not available\n");
return 1;
}
#endif
#ifndef SWIFT_DEBUG_TASKS
if (dump_tasks) {
printf("Error: task dumping is only possible if SWIFT was configured"
" with the --enable-task-debugging option.\n");
return 1;
printf(
"Error: task dumping is only possible if SWIFT was configured"
" with the --enable-task-debugging option.\n");
return 1;
}
#endif
#ifndef SWIFT_DEBUG_THREADPOOL
if (dump_threadpool) {
printf("Error: threadpool dumping is only possible if SWIFT was "
"configured with the --enable-threadpool-debugging option.\n");
return 1;
printf(
"Error: threadpool dumping is only possible if SWIFT was "
"configured with the --enable-threadpool-debugging option.\n");
return 1;
}
#endif
/* The CPU frequency is a long long, so we need to parse that ourselves. */
if (cpufreqarg != NULL) {
if (sscanf(cpufreqarg, "%llu", &cpufreq) != 1) {
if (myrank == 0) printf("Error parsing CPU frequency (%s).\n",
cpufreqarg);
if (myrank == 0)
printf("Error parsing CPU frequency (%s).\n", cpufreqarg);
return 1;
}
}
......@@ -303,28 +314,30 @@ int main(int argc, char *argv[]) {
}
if (!with_self_gravity && !with_hydro && !with_external_gravity) {
if (myrank == 0) {
argparse_usage(&argparse);
printf("\nError: At least one of -s, -g or -G must be chosen.\n");
}
return 1;
if (myrank == 0) {
argparse_usage(&argparse);
printf("\nError: At least one of -s, -g or -G must be chosen.\n");
}
return 1;
}
if (with_stars && !with_external_gravity && !with_self_gravity) {
if (myrank == 0) {
argparse_usage(&argparse);
printf("\nError: Cannot process stars without gravity, -g or -G "
"must be chosen.\n");
}
return 1;
if (myrank == 0) {
argparse_usage(&argparse);
printf(
"\nError: Cannot process stars without gravity, -g or -G "
"must be chosen.\n");
}
return 1;
}
if (!with_stars && with_feedback) {
if (myrank == 0) {
argparse_usage(&argparse);
printf("\nError: Cannot process feedback without stars, -S must be "
"chosen.\n");
}
return 1;
if (myrank == 0) {
argparse_usage(&argparse);
printf(
"\nError: Cannot process feedback without stars, -S must be "
"chosen.\n");
}
return 1;
}
/* Let's pin the main thread, now we know if affinity will be used. */
......@@ -421,7 +434,8 @@ int main(int argc, char *argv[]) {
message(
"Overwriting values read from the YAML file with command-line "
"values.");
for (int k = 0; k < cmdps.nparam; k++) parser_set_param(params, cmdps.param[k]);
for (int k = 0; k < cmdps.nparam; k++)
parser_set_param(params, cmdps.param[k]);
}
}
#ifdef WITH_MPI
......
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