cudaEventTimer gives me weird results

Accelerated Computing CUDA CUDA Programming and Performance
#1

Hi,

Im using windows 7 x64 and VS2010 when I time my cuda program on windows it gives me weird results the program is just a simple read and write of threads. the results posted on windows 7 is about 8302.192 ms in ubuntu its 313.120 ms

can someone help me fix this timing result discrepancy.

I have q6600 cpu, 4gb of ram and 2 8600gt 512 gb of ram.

Thanks,
Kilo

#2

Make sure you’re checking for errors properly and that the kernel is being launched correctly on both OS’es.

#3

Thanks. I found the problem it I was building my project against x64. when i tried to build it on x32 i got some speed up. I am just wondering why this happens