/**
* Perform the spectrum computations.
* @return int Returns 0 when task was successfully started
* @param inbuf Pointer to raw input Buffer
* @param outbuf Pointer to spectrum output Buffer
*/
int TaskCoreCell::run(Buffer* inbuf, Buffer* outbuf)
{
int mbox;
/* update SPE task context */
cb.terminate_flag = 0;
cb.rawif_src.p = (void*) inbuf->getData();
cb.rawif_bytecount = inbuf->getLength();
cb.spectrum_dst.p = (void*) outbuf->getData();
/* task context ready, wake up the SPE to start processing */
spe_write_in_mbox(this->speid, 0x1234);
/* remember the current output buffer for setting length on completion */
prevBufOut = outbuf;
return 0;
}
/**
* Clean up all allocations etc
* @return int Returns 0 on success
*/
int TaskCoreCell::finalize()
{
int status;
/* tell SPE to exit */
cb.terminate_flag = 1;
spe_write_in_mbox(this->speid, 0x1234);
/* wait for the SPE program to exit */
spe_wait(this->speid, &status, 0);
#if 1
cout << "SPE of rank " << rank << " completed, total time " << (double(total_time)/__timebase__) << "s, "
<< " total FFTs " << total_ffts_count << ", total spectra " << total_spectra_count << endl;
#endif
return 0;
}
/** sends a 64-bit value to the SPE mailbox. */
static void writeMailBox( ppu_addr_t addr ){
speid_t spe_id = getSpeId();
spe_write_in_mbox( spe_id, (uint32_t)addr );
spe_write_in_mbox( spe_id, (uint32_t)(addr>>32) );
}
