CUDA GPU solver running very slow.
Submitted by Denar on January 13, 2014 - 10:50
Hello,
I'm using Nvidia GeForce GTX 650 with 384 cuda cores. Why solving process is running MUCH slower on my GPU card? My CPU is intel i3.
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Case not large enough
Assuming your i3 CPU solver runs are using 2 cores then most likely your case isn't big enough - you need to run relatively large cases to see any speedup using the GPU. For more background see "CFD Performance Comparison Between GPU and CPU".