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jadot-bp / fastsum_gpu

Repository for the "FAST" FASTSUM Analysis Software Tools prepared during the 2024 DiRAC GPU Workshop.
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RxT Wilson loops crash for both RxT > 1 #5

Open RJaBi opened 6 months ago

RJaBi commented 6 months ago

The RxT wilson loop code crashes (when trying to evaluate the path) for both R and T > 1. It works fine for large R, T =1 and large T, R =1. I tested multiple sizes on the smallest conf (8x24^3), and R or T = 1 (other = NT or NS) on a 256x24^3.

The crash is a segfault.

The code is sufficiently slow that we should see improvement on GPU even with these constraints (200s for R=24, NT=1 for 256x24^3)

RJaBi commented 6 months ago

Notably the code does not crash if only a single position is used....

Could this be related to 'plaq' being reused? EDIT: It is not.