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[diderot] View of /branches/vis12/src/compiler/c-target/fragments/par-main.in
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View of /branches/vis12/src/compiler/c-target/fragments/par-main.in

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Revision 2077 - (download) (annotate)
Mon Nov 5 11:51:35 2012 UTC (8 years, 6 months ago) by jhr
File size: 1802 byte(s)
  Optimize case where no barrier synchronization is required in parallel implementation.
//! Main function for parallel C target
int main (int argc, const char **argv)
    bool        timingFlg = false;      //! true if timing computation
    bool        printOutputFlg = false; //! true if output is in text format

  // create the world
    @PREFIX@World_t *wrld = @PREFIX@Init();
    if (wrld == 0) {
        fprintf(stderr, "unable to create world\n");
        exit (1);

  // handle command-line options
	Diderot_Options_t *opts = Diderot_OptNew ();
	Diderot_uint_t np = wrld->sched->numWorkers;
	@PREFIX@Inputs_t inputs;
	InitDefaults (&inputs);
	Diderot_OptAddFlag (opts, "verbose", "enable runtime-system messages", &(wrld->verboseFlg));
	Diderot_OptAddFlag (opts, "timing", "enable execution timing", &timingFlg);
	Diderot_OptAddFlag (opts, "text", "enable text output", &printOutputFlg);
	Diderot_OptAddUInt (opts, "np", "specify number of worker threads", &np, true);
	RegisterGlobalOpts (&inputs, opts);
	Diderot_OptProcess (opts, argc, argv);
	Diderot_OptFree (opts);
	wrld->sched->numWorkers = np;
	InitInputs (wrld, &inputs);

  // run the generated global initialization code
    if (wrld->verboseFlg)
        fprintf (stderr, "initializing globals ...\n");
    @PREFIX@Initially (wrld);

    if (wrld->verboseFlg)
        fprintf(stderr, "run with %d strands ...\n", wrld->numStrands);
    double t0 = airTime();
    uint32_t nSteps = @PREFIX@Run (wrld, 0);
    double totalTime = airTime() - t0;

    if (wrld->verboseFlg)
        fprintf (stderr, "done: %d steps, in %f seconds\n", nSteps, totalTime);
    else if (timingFlg)
        printf ("usr=%f\n", totalTime);

  // output the final strand states
    if (printOutputFlg)
        PrintOutput (wrld);
        WriteOutput (wrld);
    @PREFIX@Shutdown (wrld);

    return 0;

} // main

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