- Open folder containing project files using VS
- Build->Build All
- Select startup item->emult_perf.exe
The point of this code is to test various datatypes including a half precision complex type. To select the datatype to test, set the TYPE macro on line 26.
Set the 'COMPCAP' macro to the the gpu's compute capability.
In Cmakelist.txt, set the line 'string(APPEND CMAKE_CUDA_FLAGS " -gencode arch=compute_XX,code=sm_XX")' to the compute capability of the gpu (e.g. -gencode arch=compute_61,code=sm_61 for gtx 1080)
The code was run using an NVIDIA GTX 1080 ti GPU. The number of trials was 10000 and the number of elements to multiply per trial was 50000.
Real: 0.128ms
Complex32: 0.214ms
2x half: 0.127ms
half2: 0.127ms (same for both methods)