bool GPUSMProcessor::advance_clock(FlodID fid) {
if (!active) {
// time to remove from the running queue
TaskHandler::removeFromRunning(cpu_id);
return false;
}
fetch(fid);
if (!busy)
return false;
clockTicks.inc();
setWallClock();
if (unlikely(throttlingRatio>1)) {
throttling_cntr++;
uint32_t skip = ceil(throttlingRatio/getTurboRatioGPU());
if (throttling_cntr < skip) {
return true;
}
throttling_cntr = 1;
}
// ID Stage (insert to instQueue)
if (spaceInInstQueue >= FetchWidth) {
//MSG("\nFor CPU %d:",getId());
IBucket *bucket = pipeQ.pipeLine.nextItem();
if( bucket ) {
I(!bucket->empty());
spaceInInstQueue -= bucket->size();
pipeQ.instQueue.push(bucket);
}else{
noFetch2.inc();
}
}else{
noFetch.inc();
}
// RENAME Stage
if ( !pipeQ.instQueue.empty() ) {
// FIXME: Clear the per PE counter
spaceInInstQueue += issue(pipeQ);
}else if (ROB.empty() && rROB.empty()) {
//I(0);
// Still busy if we have some in-flight requests
busy = pipeQ.pipeLine.hasOutstandingItems();
return true;
}
retire();
return true;
}
bool AccProcessor::advance_clock(FlowID fid)
/* Full execution: fetch|rename|retire {{{1 */
{
// MSG("@%lld: AccProcessor::advance_clock(fid=%d) cpu_id=%d\n",(long long int)globalClock,fid,cpu_id);
if( globalClock > 500 && ((globalClock % 10) == (fid)) ) {
if( reqid & 1 ) {
//MSG("@%lld: AccProcessor::advance_clock(fid=%d) memRequest write cpu_id=%d myAddr=%016llx\n",(long long int)globalClock,fid,cpu_id,(long long int)myAddr);
MemRequest::sendReqWrite(memorySystem->getDL1(), true, myAddr+=addrIncr, write_performedCB::create(this,reqid++,globalClock));
} else {
//MSG("@%lld: AccProcessor::advance_clock(fid=%d) memRequest read cpu_id=%d myAddr=%016llx\n",(long long int)globalClock,fid,cpu_id,(long long int)myAddr);
MemRequest::sendReqRead(memorySystem->getDL1(), true, myAddr, read_performedCB::create(this,reqid++,globalClock));
}
}
if (!active) {
return false;
}
clockTicks.inc(true);
setWallClock(true);
return true;
}