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Problem when solving large system using Scalapack PDGESV
A parallel fortran code that solves a set of linear simultaneous equations Ax = b using the scalapack routine PDGESV fails (exiting with segmentation fault) when the no. of equations, N, becomes...
View ArticleIs PARDISO for cluster available in composer edition?
Can i use the "Parallel Direct Sparse Solver for Clusters" in "Intel Parallel Studio XE Composer Edition" ?If not, what version is available?
View ArticlePacked versus compact versus normal routines versus jit
HiI need to do a tons ofC = A*B^TWhere all matrices n times n big. n is typical 256 but could be smaller or bigger. Both A and B are used multiple times. Moreover the C is used in later multiplications...
View Article2017 version of MKL?
Is MKL 2017 is still available?I have a Phi 3120a and would like to try the automatic offload feature - which was removed in the MKL 2018 release.
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dfeast_scsrgv and zfeast_hcsrgv Segmentation fault Error
Hello,I am trying solve a generalized eigenvalues problem Ax = λBx by means of dfeast_scsrgv, but, I get SIGSEV error, I test the individual matrices A and B with dfeast_scsrev and all works fine, so I...
View ArticleIs it available MKL 2017 for free?
Hello, I wanted to ask if is available Intel MKL for free because I tried to download it from https://registrationcenter.intel.com/en/products/postregistration/?sn=NW... and the oldest version that I...
View ArticleScaLAPACK crash using different block sizes
Hi,I would like to use pzgesv routine to solve system of linear equations but it crashes if use block size 64 and e.g. with two processes it doesn't crash if i run the program with mpirun -np 1...
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SVD weird perfomance issues
Hi,I am facing performance issues with the function dgesvd when running in 64bit with AVX2 (MKL_CBWR=AVX2)For some sizes of matrix the SVD duration is 25 times longer in 64bit than in 32bit !You may...
View ArticleUnderstanding arguments of mkl_sparse_?_qr
Hello thereSo I am trying to solve a sparse linear least squares min||Ax - b|| where the matrix A is sparse.The MKL 2019 introduced QR solver with the documentation available...
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Inconsistency finding Eigenvalues for sparse matrices with MKL
Hi,I am trying to calculate the smallest real eigenvalues of a general problem A*V = B*V*D with sparse matrices using MKL and I have been having four problems when comparing to MATLAB:1. I am always...
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Memory leak in 'dsygv' of latest MKL
Dear all,I build my 64 bit program under Windows 10 64 bit + VS2017 + Intel Parallel Studio 2019 update 4, I found the program has the memory leak problem. I checked by Intel Inspector and found that...
View ArticleConfused About MKL Linking Warnings/Errors w/Visual Studio 2015
Hi, I'm updating my static library from a very old version of MKL (circa ~2010) to MKL version 2019 Update 3. I'm using Visual Studio 2015. The only changes I made to my existing codebase was to...
View ArticleMissing SONAME for libmkl_rt.so / 2019.0.4
Hey there,the current version (2019.0.4) of libmkl_rt.so has no SONAME set. This leads to various minor linking issues, as ld/cmake then places the absolute path in the DT_NEEDED ELF field, instead of...
View Articlescalapack psgemm fails
Hi. I want to use psgemm to multiply a matrix A by its transpose on its left-hand-side, namely: C = At * AI am trying to run a simple program with 9 processors placed in a 3x3 grid. Each processor...
View ArticleIntel MKL support OS & CPU Generation
I have some question about Intel® MKL 2019.I confirmed following Web site. https://software.intel.com/en-us/articles/intel-math-kernel-library-intel-mkl-2019-system-requirements1: Does Intel® MKL 2019...
View ArticleThe command "..." exited with code 1
I recently downloaded the mkl and tried to test it using a simple code. When I build it however, I get a message saying: the command … exited with code 1. Anyone know how to fix it?
View ArticleBug in mkl_sparse_spmm (?)
Hello,I am finding very strange results from mkl_sparse_spmm()My code looks like below.The strange thing is:1. if I pass the routine a "small" pair of sparse matrices (A[m x k] dot B[k x n], m =...
View Articlemkl_sparse_d_spmmd does not support CSC matrices?
HelloSo I created a handle for matrix A (MwqTHandle) in CSR form and a handle for matrix B in CSC form. I tried to multiply these two together using mkl_sparse_d_spmmd. Status was reported as success,...
View ArticleMKL on Celeron processor?
・Does MKL support Intel Celeron processors?・How does MKL behave on Celeron? for example 3000 series (Celeron G3900)I found about supported hardware about mkl,but celeron was not listed......
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Error in PARDISO 6.0
Hi!I am a new user of PARDISO 6.0 . Recently I am trying to compile " pardiso_sym.f " which is downloaded from www.pardiso-project.org. I got some errors. [PARDISO]: License check was successful...
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