I am utilizing the command-line profiler to profile OpenCL kernels running on a Tesla K20c. I am trying to synchronize the profiler timestamp data to the system time, but having trouble finding sufficient documentation about the output.
Specifically, the head of the profiler output file is:
# OPENCL_PROFILE_LOG_VERSION 2.0 # OPENCL_DEVICE 0 Tesla K20c # OPENCL_CONTEXT 1 # OPENCL_PROFILE_CSV 1 # TIMESTAMPFACTOR fffff6707da8a778
I cannot find what TIMESTAMPFACTOR means, as it relates to the timestamp (or gpustarttimestamp) fields.
Guidance or assistance is greatly appreciated.