Search found 273 matches

by Stan Tomov
Fri Oct 30, 2009 9:25 am
Forum: User discussion
Topic: Some questions on testing_sgetrf
Replies: 7
Views: 20686

Re: Some questions on testing_sgetrf

Hi,
It looks like we have to recompile a few CUDA kernels for your system. To make sure that's the problem, are the other functions O.K., e.g. what do you get when running testing_sgeqrf?
Thanks,
Stan
by Stan Tomov
Thu Oct 29, 2009 2:30 pm
Forum: User discussion
Topic: Some questions on testing_sgetrf
Replies: 7
Views: 20686

Re: Some questions on testing_sgetrf

Hello, A user had a similar problem before and in that case updating the driver fixed it. You can run an older cuda on a new driver ( for example CUDA 2.1 on 190 driver) but not vice-versa. For example CUDA 2.3 requires 190.xx CUDA 2.2 requires 185.xx CUDA 2.1 requires 180.xx You can check your driv...
by Stan Tomov
Tue Oct 13, 2009 1:57 pm
Forum: User discussion
Topic: error in linking
Replies: 2
Views: 9004

Re: error in linking

Hi, The undefined functions are in the LAPACK library and should be recognized (in general) in the MKL library when you link with "-L/opt/intel/mkl721/lib/em64t -lmkl_em64t -lguide" What version of gcc and mkl are you using? We use mkl 10.0.1.014 and compile exactly in the way you are trying. Would ...
by Stan Tomov
Wed Oct 07, 2009 11:52 pm
Forum: User discussion
Topic: Support for os x?
Replies: 2
Views: 7937

Re: Support for os x?

Hello,
We are preparing MAGMA version 0.2 to be released by November 14, along with the sources. We don't plan to directly support Apple OS X (but know of collaborators that have ported the current MAGMA version 0.1 and we will check with them if they want to do it).
Stan
by Stan Tomov
Wed Oct 07, 2009 11:42 pm
Forum: User discussion
Topic: Source code?
Replies: 4
Views: 15348

Re: Source code?

Hi Michael, I am happy to hear you like the library. We are preparing MAGMA version 0.2 to be released by November 14, along with the sources. The library itself is "high" level, in the sense we try to avoid directly coding in CUDA, just using CUDA BLAS. There are particular BLAS cases (e.g. gemm on...
by Stan Tomov
Wed Sep 16, 2009 7:25 pm
Forum: User discussion
Topic: Complex types of the MAGMA routines
Replies: 10
Views: 34226

Re: Complex types of the MAGMA routines

Malcolm, I don't see any technical reasons. As far as I know they are working on it and would have it soon. My guess is that the reason is combination of man-power needed to do it and priorities. There are many routines to do; others to optimize; maintain them for different platforms; the ones to be...
by Stan Tomov
Wed Sep 16, 2009 12:34 pm
Forum: User discussion
Topic: Complex types of the MAGMA routines
Replies: 10
Views: 34226

Re: Complex types of the MAGMA routines

The complex version of the 3 one-sided factorizations will be included. We still don't have some BLAS in complex so if NVIDIA does not provide it until then we are going to provide wrappers for what we need. For example, to do a cherk on the GPU we will just copy the data needed for the operations o...
by Stan Tomov
Thu Sep 10, 2009 1:00 pm
Forum: User discussion
Topic: MAGMA version 0.1 Released
Replies: 5
Views: 26796

Re: MAGMA version 0.1 Released

Thanks for trying out MAGMA and the input. The GTX 285 results look impressive! the GPU interface offer better GPU's performance than the same ones in the CPU interface's case (e.g.: sgetrf and sgetrf_gpu). Is that because the time to exchange data between CPU's memory and GPU's memory in the CPU's ...
by Stan Tomov
Wed Sep 09, 2009 3:53 pm
Forum: User discussion
Topic: Multi-GPU support in the future?
Replies: 3
Views: 11012

Re: Multi-GPU support in the future?

Hi Mike, I don't think (correct me if I'm wrong) that complex support is there yet in MAGMA. Presumably this will only increase the number of flops/s since complex arithmetic is more compute intensive? We have the MAGMA routines for complex but not all the complex BLAS that is needed. NVIDIA is work...
by Stan Tomov
Wed Sep 09, 2009 2:32 pm
Forum: User discussion
Topic: Some questions..
Replies: 1
Views: 6418

Re: Some questions..

Hi, are you going to release compiled binaries for mainly MacOS and Windows systems where CUDA is also supported? If you are not consider adding support for it are you considering releasing as an open source project so still interested users can compiler for that platform? MAGMA version 0.1 is a fre...