How do you want me to send the debug file? Thanks for your time.

I have sent you a PM about that

Done

After checking the detailed data, it's indeed an NVIDIA driver problem. NVAPI doesn't return information about Teslas at all.
Moreover, due to a bug in addressing, HWiNFO thinks the 2nd adapter is the Tesla, but in fact that information should belong to the 2nd TITAN.
NVIDIA needs to fix this.

Despite that, I think that HWiNFO should display at least the temperature for all GPUs even if not currently properly supported by NVAPI.

This is what Nvidia says:

"Checking with Driver team.

Tesla customers use the nvsmi or nvml for getting the gpu statistics.

Nvapi is more for geforce and quadro. I have asked engg if the nvapi extends to Tesla."

Thanks

yes, 12Gb and 64fp performance is hard to replace for some tasks.
I was very happy they released a 1k$ 6gb card a few months ago, as even current 3gb 780ti is significantly slower for my tasks due to a lot of memory swapping between GPU and system.

12Gb would be even better, but I can not justify 5k$ just yet :)

CUDA6 will introduce Multi-GPU scaling (cublasXT); should allow you to use the GDDR memory of up to 8 cards on one app.
NVidia,

a new BLAS GPU library that automatically scales performance across up to eight GPUs in a single node, delivering over nine teraflops of double precision performance per node, and supporting larger workloads than ever before (up to 512GB). The re-designed FFT GPU library scales up to 2 GPUs in a single node, allowing larger transform sizes and higher throughput.

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