Search found 41 matches

by mateo70
Tue Mar 15, 2011 5:14 pm
Forum: User discussion
Topic: Memory Access Error
Replies: 3
Views: 2339

Re: Memory Access Error

Hi, what is exactly your problem ? Do you have a segfault ? do you have a problem of precision in the result ? What is the size ? What is your configuration ? The only thing I see, is that you need to have ldda and lddb multiple of 32 for LU and at one point your are using ldda instead of lddb but i...
by mateo70
Tue Mar 15, 2011 5:08 pm
Forum: User discussion
Topic: Fortran Subarrays on GPU in RC4
Replies: 7
Views: 4620

Re: Fortran Subarrays on GPU in RC4

John,

thanks for this, we were searching how to handle that too. And we were thinking about providing a function to the user to compute the correct pointer on the device, but it will probably work for MAGMA and not for cublas.

Mathieu
by mateo70
Tue Mar 15, 2011 5:03 pm
Forum: User discussion
Topic: magma_dsytrd questions
Replies: 25
Views: 8680

Re: magma_dsytrd questions

Hi, Now I see. This routines are part of the functions we still need to port on four precisions, everything has been done in src directory (LAPACK functions), but there is still a lot of work in magmablas directory and most of it will be probably included by NVIDIA. We will add define to the correct...
by mateo70
Wed Mar 09, 2011 4:54 pm
Forum: User discussion
Topic: Trouble in running test programs
Replies: 16
Views: 10607

Re: Trouble in running test programs

Hi,

it just means that you don't have enough memory to run the default configuration.
You should try to specify M and N:
./testing_zgetrf_gpu -M 1024 -N 1024

Mathieu
by mateo70
Tue Mar 08, 2011 8:23 pm
Forum: User discussion
Topic: Further NaN problem with dsgesv_gpu
Replies: 11
Views: 4810

Re: Further NaN problem with dsgesv_gpu

Hi,

I note that and I will try to get it fixed.

Mathieu
by mateo70
Tue Mar 08, 2011 8:21 pm
Forum: User discussion
Topic: Changes in RC4
Replies: 5
Views: 3080

Re: Changes in RC4

Hi, I won't enter into details, but quark should have not appear into the previous release. The new directory control contains all the workaround of MAGMA and will contains the future functions for initialisation of MAGMA library in a context for using different cards for example or multi-threaded c...
by mateo70
Tue Mar 08, 2011 8:13 pm
Forum: User discussion
Topic: magma_dsytrd questions
Replies: 25
Views: 8680

Re: magma_dsytrd questions

Hi, I will check, because I haven't work on this paper, but I think that the difference of performance you get on these routines is due to the cublasAlloc that we added to the function to make it user friendly. When the workspace is allocated once out of the function, it can change a lot the perform...
by mateo70
Tue Mar 08, 2011 2:53 pm
Forum: User discussion
Topic: 1.0.0-RC3 build errors : testing folder ()
Replies: 1
Views: 1861

Re: 1.0.0-RC3 build errors : testing folder ()

Hi,

you probably have to replace f2c by gftortran. f2c was the library used by f77 and has been changed with the gfortran compiler.

Mathieu
by mateo70
Tue Mar 08, 2011 2:50 pm
Forum: User discussion
Topic: Fremi and Tesla support in one library?
Replies: 2
Views: 2024

Re: Fremi and Tesla support in one library?

Hi,

it's part of our plan. In a first shot we will provide the possibility to compile two different libraries with different symbols, and we will think how to merge them in only one library. But it will be probably for next month, not before.

Mathieu
by mateo70
Tue Mar 08, 2011 12:54 pm
Forum: User discussion
Topic: Contributing code to MAGMA
Replies: 2
Views: 1715

Re: Contributing code to MAGMA

Hi,

thank you to be interrested in contributing to MAGMA, you can send the patch directly to me and Stan at [mfaverge, tomov] AT eecs.utk.edu
I will try to integrate it as fast as possible.

Thanks,
Mathieu