[SOLVED] errors when using magma_dgels_gpu

[ReL]

Hello,

I have noticed some errors when using magma_dgels_gpu:

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CUBLAS error: memory mapping error (11) in magma_dsetmatrix at dset_get.cpp:98
testMagmaDGELS: dset_get.cpp:160: void magma_dcopymatrix(int, int, const double *, int, double *, int): Assertion `status == cudaSuccess' failed.

magma_dgels3_gpu works fine.

I have attached a sample code sample that enables reproducing the issue:

testMagmaDGELS.cpp

code sample

(3.48 KiB) Downloaded 77 times

I hope it will help. :)

Rémi

[Stan Tomov]

Hi Remi,
I could not reproduce the problem using MAGMA 1.2.1. It could have been a bug in some wrappers that we have fixed in 1.2.1. Please update to see if you still have the error. Using your example code I get

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[tomov@cumin testing]$  ./testMagmaDGELS
Optimal work space 8514
LLSP solved successfully
Solution vector:
   0.953333
   -0.843333
   0.906667


Stan

[ReL]

Hello Stan,

Indeed the problem is fixed in MAGMA 1.2.1. Thanks for looking into that.

Rémi