Search found 279 matches

by Stan Tomov
Tue Dec 08, 2009 5:08 pm
Forum: User discussion
Topic: Question about linear solver sgetrf_gpu in Magma 0.2
Replies: 2
Views: 7220

Re: Question about linear solver sgetrf_gpu in Magma 0.2

The solver first transposes the matrix in the GPU memory. The CUDA kernel that is doing it is of block size 32 and we request larger matrix so that we do not code the transpose operation for general matrix size. This will be most probably changed in future releases. When the next panel has to be pro...
by Stan Tomov
Fri Dec 04, 2009 11:45 am
Forum: User discussion
Topic: Several questions about linear LU solvers in Magma 0.2
Replies: 2
Views: 7644

Re: Several questions about linear LU solvers in Magma 0.2

Hello Jpeinado, We are happy to hear you use and like the MAGMA package. 1) ...in testing_sgesv_gpu.cpp file: magma_sgetrf_gpu(&N, &N, d_A, &dlda, IPIV, h_work_M_S, INFO); magma_sgetrs_gpu("N", N, NRHS, d_A, dlda, IPIV, d_B, LDB, INFO, h_work_M_S); I think this is the equivalent way to magma_sgesv_g...
by Stan Tomov
Sun Nov 29, 2009 12:32 am
Forum: User discussion
Topic: MAGMA Shared libraries
Replies: 4
Views: 17989

Re: MAGMA Shared libraries

Evan, Function slamch is auxiliary LAPACK functions, and indeed is not defined in the magma or magmablas libraries. How did you manage to make the compiler link when you have something undefined? I make shared objects the way you do and it works. When you link with the shared libraries, and then try...
by Stan Tomov
Sat Nov 28, 2009 3:29 pm
Forum: User discussion
Topic: MAGMA for Windows?
Replies: 1
Views: 6572

Re: MAGMA for Windows?

Hi Li,

Please let us know how did the MAGMA 0.2 port to Windows go. When ready, maybe even post the binary libraries for Windows. Thank you.

Best regards,
Stan Tomov
by Stan Tomov
Thu Nov 26, 2009 2:53 am
Forum: User discussion
Topic: MAGMA version 0.2
Replies: 9
Views: 34097

Re: MAGMA version 0.2

Hung,
Thanks for pointing this out and sorry about it. After some maintenance one of the scripts that posts the tar-ball on the MAGMA site wasn't checking that we had made 'make clear' and the 64-bit library was actually removed.
Now everything should be fine.
Regards,
Stan
by Stan Tomov
Sun Nov 22, 2009 7:22 pm
Forum: User discussion
Topic: sgetrf matlab mex file - crashing...
Replies: 13
Views: 29111

Re: sgetrf matlab mex file - crashing...

I commented out the matlab related functionality in your code and ran it without problem for various Ls, including 131. Is it possible that the matrix A does not get a "good pointer", e.g. you have A = (float*) mxGetData(prhs[0]); This should point to L*L floats at least (if lda is L). I only replac...
by Stan Tomov
Sun Nov 22, 2009 4:28 am
Forum: User discussion
Topic: Matlab/nvmex - failure to compile
Replies: 10
Views: 27492

Re: Matlab/nvmex - failure to compile

If you want to try, here are the shared versions of the libraries.
libmagmablas.so.gz
(716.98 KiB) Downloaded 912 times
libmagma.so.gz
(55.86 KiB) Downloaded 904 times
by Stan Tomov
Sat Nov 21, 2009 8:30 pm
Forum: User discussion
Topic: Using MAGMA without Intel MKL
Replies: 13
Views: 40633

Re: Using MAGMA without Intel MKL

We released MAGMA 0.2 that fixes the problem of calling it from "C".
by Stan Tomov
Sat Nov 21, 2009 8:23 pm
Forum: User discussion
Topic: Matlab/nvmex - failure to compile
Replies: 10
Views: 27492

Re: Matlab/nvmex - failure to compile

This is interesting. I'll ask our compiler people for a clue. MAGMA 0.2 is compiled with gcc version 4.1.2. You compile the testing suite though with your compiler and link without problem, so it shouldn't be e problem of intermixing the versions. I tried to reproduce your problem and if I try to do...
by Stan Tomov
Fri Nov 20, 2009 7:03 pm
Forum: User discussion
Topic: Complex types of the MAGMA routines
Replies: 10
Views: 34576

Re: Complex types of the MAGMA routines

Hi Malcolm, We just released MAGMA version 0.2. This new version has the LU, QR, and Cholesky factorizations in complex arithmetic. There is a lot of other new functionality as well. Here is a link to the MAGMA version 0.2 Users' Guide http://icl.cs.utk.edu/projectsfiles/magma/docs/magma-v02.pdf The...