does cudaDeviceProp.memoryClockRate always report DDR effective memory clock?
The documentation only states:
int cudaDeviceProp::memoryClockRate [inherited] Peak memory clock frequency in kilohertz
nvidia-smi also seems to refer to the effective DDR memory speed instead of the real clock.
Example: Our K80 with GDDR5 shows 2505 MHz for the memory clock given by cudaDeviceProp or nvidia-smi. The real clock is 1252 MHz and the effective QDR memory speed is 5010 MHz.
GDDR3/DDR3 is probably not worth mentioning it, but how about HBM2? Just want to know if it is save to always divide the memoryClockRate by 2 to get the real memory clock rate.
Best Regards and Thank you for your consideration.