cuda - Event Sampling in Tesla GPU -
i trying work cupti library in cuda read performance counters instructions executed, memory access etc. when executing sample provided cupti installation (/usr/local/cuda-5.0/extras/cupti/sample/event_sampling) says 'event sampling not supported tesla family devices". (i using gts 250). mean won't able read counters during application execution or else?
thanks
you might want read cupti documentation. event sampling api separate , distinct metric api. cupti metric api can used read counters associated metrics identified supported on particular compute capability running on. example, supported cc 1.x counters identified here.
the error message received indicates event sampling functionality (api) not supported on devices of compute capability less 2.0 tesla used here nvidia codename family of gpus predated fermi (cc 2.0/2.1) generation.
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