int
NBody::verifyResults()
{
if(verify) {
/* reference implementation
* it overwrites the input array with the output
*/
refPos = (cl_float*)malloc(numBodies * sizeof(cl_float4));
assert(refPos != NULL);
refVel = (cl_float*)malloc(numBodies * sizeof(cl_float4));
assert(refVel != NULL);
memcpy(refPos, initPos, 4 * numBodies * sizeof(cl_float));
memcpy(refVel, initVel, 4 * numBodies * sizeof(cl_float));
for(int i = 0; i < iterations; ++i) {
nBodyCPUReference();
}
/* compare the results and see if they match */
if(!compareVector(pos, refPos, 4 * numBodies, 0.00001)) {
exit(1);
}
}
return 0;
}
int
NBody::verifyResults()
{
if(verify)
{
/* reference implementation
* it overwrites the input array with the output
*/
refPos = (cl_float*)malloc(numBodies * sizeof(cl_float4));
if(refPos == NULL)
{
sampleCommon->error("Failed to allocate host memory. (refPos)");
return SDK_FAILURE;
}
refVel = (cl_float*)malloc(numBodies * sizeof(cl_float4));
if(refVel == NULL)
{
sampleCommon->error("Failed to allocate host memory. (refVel)");
return SDK_FAILURE;
}
memcpy(refPos, initPos, 4 * numBodies * sizeof(cl_float));
memcpy(refVel, initVel, 4 * numBodies * sizeof(cl_float));
for(int i = 0; i < iterations; ++i)
{
nBodyCPUReference();
}
/* compare the results and see if they match */
if(sampleCommon->compare(pos, refPos, 4 * numBodies, 0.00001))
{
std::cout << "Passed!\n";
return SDK_SUCCESS;
}
else
{
std::cout << "Failed!\n";
return SDK_FAILURE;
}
}
return SDK_SUCCESS;
}
