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/* -*- c++ -*- */
/*
* Copyright 2007,2008 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio 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 General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#if defined(HAVE_CONFIG_H)
#include <config.h>
#endif
#include <gcell/gc_job_manager.h>
#include <omni_time.h>
#include <getopt.h>
#include <stdlib.h>
#include <stdio.h>
// handle to embedded SPU executable that contains benchmark routines
// (The name of the variable (benchmark_procs) is the name of the spu executable.)
extern spe_program_handle_t benchmark_procs;
static gc_proc_id_t gcp_benchmark_udelay = GCP_UNKNOWN_PROC;
static void
init_jd(gc_job_desc *jd, unsigned int usecs)
{
jd->proc_id = gcp_benchmark_udelay;
jd->input.nargs = 1;
jd->input.arg[0].u32 = usecs;
jd->output.nargs = 0;
jd->eaa.nargs = 0;
}
static void
run_test(unsigned int nspes, unsigned int usecs, int njobs)
{
static const int NJDS = 64;
int nsubmitted = 0;
int ncompleted = 0;
gc_job_desc *all_jds[NJDS];
gc_job_desc *jds[2][NJDS];
unsigned int njds[2];
unsigned int ci; // current index
bool done[NJDS];
gc_jm_options opts;
opts.program_handle = gc_program_handle_from_address(&benchmark_procs);
opts.nspes = nspes;
opts.gang_schedule = true;
gc_job_manager_sptr mgr = gc_make_job_manager(&opts);
if ((gcp_benchmark_udelay = mgr->lookup_proc("benchmark_udelay")) == GCP_UNKNOWN_PROC){
fprintf(stderr, "lookup_proc: failed to find \"benchmark_udelay\"\n");
return;
}
// allocate and init all job descriptors
for (int i = 0; i < NJDS; i++){
all_jds[i] = mgr->alloc_job_desc();
init_jd(all_jds[i], usecs);
}
omni_time t_start = omni_time::time();
ci = 0;
njds[0] = 0;
njds[1] = 0;
// submit the first batch
for (int i = 0; i < NJDS; i++){
if (mgr->submit_job(all_jds[i])){
jds[ci][njds[ci]++] = all_jds[i];
nsubmitted++;
}
else {
printf("submit_job(jds[%d]) failed, status = %d\n",
i, all_jds[i]->status);
}
}
while (ncompleted < njobs){
njds[ci^1] = 0;
int n = mgr->wait_jobs(njds[ci], jds[ci], done, GC_WAIT_ANY);
// printf("%2d\n", n);
if (n < 0){
fprintf(stderr, "mgr->wait_jobs failed\n");
break;
}
for (unsigned int i = 0; i < njds[ci]; i++){
if (!done[i]){ // remember for next iteration
jds[ci^1][njds[ci^1]++] = jds[ci][i];
}
else {
ncompleted++;
// printf("ncompleted = %7d\n", ncompleted);
if (nsubmitted < njobs){ // submit another one
if (mgr->submit_job(jds[ci][i])){
jds[ci^1][njds[ci^1]++] = jds[ci][i]; // remember for next iter
nsubmitted++;
}
else {
printf("submit_job(jds[%d]) failed, status = %d\n",
i, jds[ci][i]->status);
}
}
}
}
ci ^= 1; // toggle current
}
// stop timing
omni_time t_stop = omni_time::time();
double delta = (t_stop - t_start).double_time();
printf("nspes: %2d udelay: %4d elapsed_time: %7.3f njobs: %g speedup: %6.3f\n",
mgr->nspes(), usecs, delta, (double) njobs,
njobs * usecs * 1e-6 / delta);
}
int
main(int argc, char **argv)
{
unsigned int nspes = 0;
unsigned int usecs = 0;
int njobs = 500000;
int ch;
while ((ch = getopt(argc, argv, "n:u:N:")) != EOF){
switch(ch){
case 'n':
nspes = strtol(optarg, 0, 0);
break;
case 'u':
usecs = strtol(optarg, 0, 0);
break;
case 'N':
njobs = strtol(optarg, 0, 0);
break;
case '?':
default:
fprintf(stderr, "usage: benchmark_nop [-n <nspes>] [-u <udelay>] [-N <njobs>]\n");
return 1;
}
}
run_test(nspes, usecs, njobs);
return 0;
}
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