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CUDA code runs but does not march through time #66
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As it runs, can you use |
Also, which graphics card are you using? It's possible the specified |
ahhh this is opening a can of worms. My laptop (Dell M5000 series) has integrated Intel graphics as well as an Nvidia card (Quadro M1000M). Currently I'm running my OS graphics on the integrated graphics card and I have no idea how CUDA code fares when doing this dual-graphics-card-but-running-the-integrated-one thing. Running "nvidia-smi" in the terminal gives me command not found, some brief foruming brings up this as a potential solution... |
I may need to swap the entire system over to Nvidia, which means making friends with all the Nvidia graphics drivers again.... |
This looks like an error stemming from a mismatch between the
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nope, neither changing the flags to 50 nor removing them entirely resolved the issue. Boo :( |
Boo indeed. This might be a hardware/driver issue. Can you test on another machine? |
...miiiight be able to try doing this in Windows?? Also, here's another stupid question: with reinstallation, nvdia card has the open-source nouveau drivers installed. These wouldn't have a chance in hell of working, would they..? |
Worth a try, yeah? (re. both Windows and nouveau) |
Is it possible your GPU doesn't support double-precision floats? |
... How do I check that?
…On Sep 6, 2017 9:52 PM, "Trevor Keller" ***@***.***> wrote:
Is it possible your GPU doesn't support double-precision floats?
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I had the same bug crop up on older hardware. Building the CUDA example without the specific flags worked for me -- committed in 73294de. Does the bug still affect your machine, @amjokisaari? |
in gpu/cuda, I run ./diffusion ../params.txt
The code appears to execute. PNGs and CSVs are generated. However, it looks like no time marching is occurring. The attached image is the final one in the sequence, they all look the same. Runlog.csv does have data generated out to 100,000 iterations.
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