void FPGAConfig::apply()
{
verbose0( "Initializing FPGA support component" );
if ( _disableFPGA ) {
_numAccelerators = 0; //system won't instanciate accelerators if count=0
} else if ( _numAccelerators < 0 ) {
/* if not given, assume we are using one accelerator
* We should get the number of accelerators on the system
* and use it as a default
*/
_numAccelerators = 1;
} else if ( _numAccelerators == 0 ) {
_disableFPGA = true;
}
if (_numAccelerators > _maxAccelerators) {
warning0( "The number of accelerators is greater then the accelerators in the system. Using "
<< _maxAccelerators << " accelerators" );
_numAccelerators = _maxAccelerators;
}
if ( _numFPGAThreads < 0 ) {
warning0( "Number of fpga threads cannot be negative. Using one thread per accelerator" );
_numFPGAThreads = _numAccelerators;
} else if ( _numFPGAThreads > _numAccelerators ) {
warning0( "Number of helper is greater than the number of accelerators. Using one thread per accelerator" );
_numFPGAThreads = _numAccelerators;
}
_idleSyncBurst = ( _idleSyncBurst < 0 ) ? _burst : _idleSyncBurst;
}
void GPUConfig::printConfiguration()
{
verbose0( "--- GPUDD configuration ---" );
verbose0( " Number of GPU's: " << _numGPUs );
verbose0( " GPU cache policy: " << ( _cachePolicy == System::WRITE_THROUGH ? "write-through" : "write-back" ) );
verbose0( " Prefetching: " << _numPrefetch );
verbose0( " Concurrent kernel execution: " << ( _concurrentExec ? "Enabled" : "Disabled" ) );
verbose0( " Overlapping: " << ( _overlap ? "Enabled" : "Disabled" ) );
verbose0( " Overlapping inputs: " << ( _overlapInputs ? "Enabled" : "Disabled" ) );
verbose0( " Overlapping outputs: " << ( _overlapOutputs ? "Enabled" : "Disabled" ) );
verbose0( " Transfer mode: " << ( _transferMode == NANOS_GPU_TRANSFER_NORMAL ? "Sync" : "Async" ) );
if ( _maxGPUMemory != 0 ) {
if ( _maxGPUMemory > 100 ) {
verbose0( " Limited memory: Enabled: " << GPUUtils::bytesToHumanReadable( _maxGPUMemory ) );
} else {
verbose0( " Limited memory: Enabled: " << _maxGPUMemory << "% of the total device memory" );
}
}
else {
verbose0( " Limited memory: Disabled" );
}
verbose0( " Allocate pinned buffers: " << ( _allocatePinnedBuffers ? "Enabled" : "Disabled" ) );
verbose0( " GPU warm up: " << ( _gpuWarmup ? "Enabled" : "Disabled" ) );
verbose0( " CUBLAS initialization: " << ( _initCublas ? "Enabled" : "Disabled" ) );
verbose0( "--- end of GPUDD configuration ---" );
}
