/**
* Do all necessary initializations
* @param settings Pointer to the global settings
*/
void TaskCoreCell::prepare(swspect_settings_t* settings)
{
/* setup */
this->cfg = settings;
this->total_time = 0;
this->total_spectra_count = 0;
this->total_ffts_count = 0;
/* prepare SPE task context constants */
cb.rank = this->rank;
cb.fft_points = cfg->fft_points;
cb.fft_points_log2 = (int)log2(cfg->fft_points);
cb.overlap_factor = cfg->fft_overlap_factor;
cb.integrate_ffts = cfg->integrated_ffts;
cb.samples_per_rawbyte = cfg->samples_per_rawbyte;
/* load and start the SPE program pointing it to the control block */
this->gid = spe_create_group (SCHED_OTHER, 0, 1);
if ((this->gid == NULL) || (spe_group_max (this->gid) < 1)) {
cerr << "TaskCoreCell prepare : spe_create_group() failed!" << endl;
exit(1);
}
this->speid = spe_create_thread(this->gid, &spectrometer_spu, (unsigned long long *)&(this->cb), NULL, -1, 0);
if (this->speid == NULL) {
cerr << "TaskCoreCell prepare : spe_create_thread() failed!" << endl;
}
cerr << "SPE thread created, rank " << this->rank << " ID " << speid << endl;
return;
}
void TxStartSPE(extern spe_program_handle_t spuCode) {
/* we allocate one control block, to correspond to one SPE */
//control_block cb[1] __attribute__ ((aligned (128)));
/* this is the pointer to the SPE code, to be used at thread creation time */
//extern spe_program_handle_t spuCode;
/* before the thread is created, we create a group environment to contain it. */
/* this "gid" is the handle for that group. */
spe_gid_t gid;
/* this is the handle which will be returned by "spe_create_thread." */
speid_t speids[1];
/* this variable is used to return data regarding an abnormal return from the SPE*/
int status[1];
/* here is the variable to hold the address returned by the malloc() call. */
int *data;
data = (int *) malloc(128);
/* Create an SPE group */
gid = spe_create_group(SCHED_OTHER, 0, 1);
if (gid == NULL) {
fprintf(stderr, "Failed spe_create_group(errno=%d)\n", errno);
return -1;
}
if (spe_group_max(gid) < 1) {
fprintf(stderr, "System doesn't have a working SPE. I'm leaving.\n");
return -1;
}
/* load the address into the control block */
//cb[0].addr = (unsigned int) data;
/* allocate the SPE task */
speids[0] = spe_create_thread(gid, &spuCode, (unsigned long long *) &cb[0], NULL, -1, 0);
if (speids[0] == NULL) {
fprintf(stderr, "FAILED: spe_create_thread(num=%d, errno=%d)\n", 0, errno);
exit(3);
}
}