Search found 6 matches

by catecb
Tue Apr 28, 2020 3:52 am
Forum: User discussion
Topic: Error in the matrix size Divide and Conquer Diagonalization
Replies: 1
Views: 502

Re: Error in the matrix size Divide and Conquer Diagonalization

It seems that the image wasn't uploaded properly. I am attaching it here again:
photo4988195582334052558.jpg
photo4988195582334052558.jpg (130.59 KiB) Viewed 501 times
by catecb
Tue Apr 28, 2020 3:51 am
Forum: User discussion
Topic: Error in the matrix size Divide and Conquer Diagonalization
Replies: 1
Views: 502

Error in the matrix size Divide and Conquer Diagonalization

We are using MAGMA to diagonalize the hamiltonian matrix in DFTB+. So far we haven't had any problems except with a particular geometry which I am attaching here geo.dat.zip . When we run DFBT+ we get the following error regarding the dimensions of the matrix: photo4988195582334052558.jpg The implem...
by catecb
Fri Mar 06, 2020 1:25 pm
Forum: User discussion
Topic: Call magma from Fortran, problem of wrapper
Replies: 13
Views: 6071

Re: Call magma from Fortran, problem of wrapper

We haven't yet made Fortran wrappers for the MAGMA BLAS functions. For the time being, you can call cublas directly, e.g., call cublas_dtrsm magma_dtrsm is simply a wrapper around cublas_dtrsm, used for portability between cuBLAS, clBLAS, and Xeon Phi MKL BLAS. magmablas_dtrsm is our own implementa...
by catecb
Tue Aug 20, 2019 1:20 pm
Forum: User discussion
Topic: Pinned memory for diagonalization dsygvd (Divide and conquer)
Replies: 1
Views: 1302

Pinned memory for diagonalization dsygvd (Divide and conquer)

For solving a problem of the form: AX=B There are two options: magma_int_t magma_dgesv (magma_int_t n, magma_int_t nrhs, double *A, magma_int_t lda, magma_int_t *ipiv, double *B, magma_int_t ldb, magma_int_t *info) magma_int_t magma_dgesv_gpu (magma_int_t n, magma_int_t nrhs, magmaDouble_ptr dA, mag...
by catecb
Fri May 17, 2019 2:30 am
Forum: User discussion
Topic: vl and vu DSYGVDX_2STAGE
Replies: 1
Views: 1255

vl and vu DSYGVDX_2STAGE

I'm using Fortran as the programming language of a software which requires to diagonalize a matrix. I've already implemented a function which makes use of magma_dsygvd_m . However, it is not as fast as I would have expected and I would like a speedup. When trying to implement magma_dsygvdx_2stage , ...
by catecb
Sat Dec 15, 2018 11:48 pm
Forum: User discussion
Topic: unsupported Fortran compiler error in magma's testing folder
Replies: 4
Views: 4336

Re: unsupported Fortran compiler error in magma's testing folder

I need testing/fortran.o file, but it's not being generated.
I put the flag you suggested everywhere, but still fortran.o does not appear.
I'm using CUDA 10.0, gfortran-7 and magma-2.5