We really need to measure the performance loss when using PCIE3 vs PCIE2 and at various amounts of lane count. It was done roughly on PCIE2 with the old app for previous generations of cards, but things have changed since then. Some apps perform much better with additional PCIE bandwidth, especially PCIE3 as it's twice as fast as PCIE2.

Instructions to participate

Hard disk install

        Check your GPU compatibility (by skgiven).
        Download and install the required GPU drivers
            CUDA drivers required [Download]
        Download and install the recommended BOINC client (6.12.34)
            BOINC for Windows 32-bit
            BOINC for Windows 64-bit
            BOINC for Linux 64-bit

Hi everybody,

So, first of all: We will not use CUDA in our app. OpenCL can do everything CUDA can do and there's really no need to use it anymore (however that's my opinion). Apart from that we are working hard to get everything to work in Single Precision. So far our forcefields are exact in single precision with the exception of our Solvent Accessible Surface Area term, which will be deployed on the CPU for the moment. The new SASA forcefield is about 7 times faster than the old one on the CPU already though and during the next time somebody will be working to deploy it also on GPUs.

So the GPU part will be single precision and OpenCL; there's also no question whether we release first ATI or NVidia - these two releases won't be more than 1-2 days apart for sure, because the code is not different apart from optimization parameters. Personally I use the ATI Stream SDK on CPU for debugging bugs usually.

As to release dates: Well we were a bit off, when we estimated POEM++ to be done for the end of CASP, therefore at the moment we are hesitant to specify an immediate release date. The CPU part however is done and we are thinking to release it first, because it also gives already quite a speedup.

Best,
Timo