stream device_t<COI>::genStream(){
OCCA_EXTRACT_DATA(COI, Device);
coiStream *retStream = new coiStream;
OCCA_COI_CHECK("Device: Generating a Stream",
COIPipelineCreate(data_.chiefID,
NULL, 0,
&(retStream->handle)) );
return retStream;
}
void init(const char* cfg)
{
/* get number of Xeon Phi devices */
uint32_t engines = 0;
COIEngineGetCount( COI_ISA_MIC, &engines );
if (engines == 0) throw std::runtime_error("No Xeon Phi device found.");
/* get engine handle */
COIRESULT result;
result = COIEngineGetHandle( COI_ISA_MIC, 0, &engine );
if (result != COI_SUCCESS)
throw std::runtime_error("Failed to load engine number " + std::stringOf(0) + ": " + COIResultGetName(result));
/* print info of engine */
COI_ENGINE_INFO info;
result = COIEngineGetInfo(engine,sizeof(info),&info);
std::cout << "Found Xeon Phi device with " << info.NumCores << " cores and " << (info.PhysicalMemory/1024/1024) << "MB memory" << std::endl;
/* create process */
const std::string executable = std::string(tutorialName)+"_xeonphi_device";
result = COIProcessCreateFromFile
(engine,
executable.c_str(), // The local path to the sink side binary to launch.
0, NULL, // argc and argv for the sink process.
false, NULL, // Environment variables to set for the sink process.
true, NULL, // Enable the proxy but don't specify a proxy root path.
0, // The amount of memory to reserve for COIBuffers.
NULL, // Path to search for dependencies
&process // The resulting process handle.
);
if (result != COI_SUCCESS)
throw std::runtime_error("Failed to create process " + std::string(executable) +": " + COIResultGetName(result));
/* create pipeline */
COI_CPU_MASK cpuMask;
result = COIPipelineClearCPUMask(&cpuMask);
if (result != COI_SUCCESS)
throw std::runtime_error(std::string("COIPipelineClearCPUMask failed: ") + COIResultGetName(result));
result = COIPipelineSetCPUMask(process,info.NumCores-1,0,&cpuMask);
result = COIPipelineSetCPUMask(process,info.NumCores-1,1,&cpuMask);
result = COIPipelineSetCPUMask(process,info.NumCores-1,2,&cpuMask);
result = COIPipelineSetCPUMask(process,info.NumCores-1,3,&cpuMask);
if (result != COI_SUCCESS)
throw std::runtime_error(std::string("COIPipelineSetCPUMask failed: ") + COIResultGetName(result));
result = COIPipelineCreate(process,cpuMask,0,&pipeline);
if (result != COI_SUCCESS)
throw std::runtime_error(std::string("COIPipelineCreate failed: ") + COIResultGetName(result));
/* get run functions */
const char *fctNameArray[8] = { "run_init", "run_key_pressed", "run_create_mesh", "run_create_hairset", "run_create_scene", "run_pick", "run_render", "run_cleanup" };
result = COIProcessGetFunctionHandles (process, 8, fctNameArray, &runInit);
if (result != COI_SUCCESS)
throw std::runtime_error("COIProcessGetFunctionHandles failed: "+std::string(COIResultGetName(result)));
/* run init runfunction */
InitData parms;
strncpy(parms.cfg,cfg,sizeof(parms.cfg));
result = COIPipelineRunFunction (pipeline, runInit, 0, NULL, NULL, 0, NULL, &parms, sizeof(parms), NULL, 0, NULL);
if (result != COI_SUCCESS)
throw std::runtime_error("COIPipelineRunFunction failed: "+std::string(COIResultGetName(result)));
}
