Sorry for this late reply.
" Together with the benchmark's author we've tried to analyze the problem which we guess is not freeing memory and system freeze.
At some point application stalls and GPU becomes unreachable. "
Did you test with latest driver and APP SDK and face the same problem? If not, please can you check and share your findings.
I had one of our engineer look at this what he found is the following
In the hydro_kernels.c and the code is not legal 1.2 OpenCL C so it is not compiling:
"/tmp/OCL29553T8.cl", line 621: error: kernel arguments can't be declared with
Init1KcuRiemann(__global Args_t * K,
"/tmp/OCL29553T8.cl", line 645: error: kernel arguments can't be declared with
Init2KcuRiemann(__global Args_t * K,
In OepnCL 1.2 You’re not allowed to pass in pointers to a kernel other than as kernel arguments. Note This restriction is removed with OpenCL 2.0. Looks like NVIDIA relaxed the driver and runtime relative to the spec here why it is working.