performance issue about pdgesv function in scalapack
I am suffering from a problem about pdgesv function in scalapack(C++).I have two computing nodes,each with 16 cores.The time spent solveing the linear Equation with pdgesv in two noodes is almost...
View Articleperformance issue about pdgesv function in scalapack
I am suffering from a problem about pdgesv function in scalapack(C++).I have two computing nodes,each with 16 cores.The time spent solveing the linear Equation with pdgesv in two noodes is almost...
View ArticleEps for Jacobian calculation
The MKL reference manual does not say much about eps to be specified for Jacobian calculation. The examples such as ex_nlsqp_c.c etc actually specify the same eps (an array of 6 elements) for...
View ArticleJoin the Webinar: Empowering Oil and Gas Applications for Intel® Xeon® and...
Subject: Join us at a webinar - Empowering Oil and Gas Applications for Intel® Xeon® and Intel® Xeon PHI™ architectures using Intel® Software SolutionsWhen: Jan 15th 2014 8:00 AM - 9:00 AM...
View ArticleProblem building mkl-fftw wrapper library
Hello,I am attempting to build the mkl-fftw wrappers, as I am compiling a program that uses FFTW3 and claims to benefit from the mkl-wrapper. When I execute the following: cd...
View ArticlePARDISO crashes randomly with different messages
Hi,I have a control volume code that calls PARDISO several times to solve a large sparse matrix (different on each call). The reason it needs to be called several times is because the entries in the...
View ArticleBug in dsytrf() in versions 10 and 11.1?
Hello!I have MKL version 10.2.5.035 and have found that thefollowing program dies when compiled for 64bit (for 32bit it runs correctly):#include "stdafx.h" #include <malloc.h> #include...
View ArticlePerformance of DGEMM on Core2 Duo P9600 2.66 GHz
Hello,I'm performing some benchmark using DGEMM from MKL and OpenBLAS (GotoBLAS successor). I'm using a piece of code similar to (I don't know why, but I can't put links in the post, but the piece of...
View ArticleLink problems with mkl under Linux
Hi, I am facing a link problem with mkl under linux (Ubuntu 12.04) recently. I am trying to make my code work but it always tell me that there are link errors. The make file is:%%%%%%%%%%%%%%%...
View ArticleInvitation to evaluate Intel® MKL Sparse Matrix Vector Multiply Format...
We are seeking interested parties to evaluate Intel® MKL SpMV Format Prototype Package for Intel® Xeon Phi™ coprocessors. Sparse Matrix Vector Multiply (SpMV) is an important operation in many...
View ArticleCompiling PLUMED with mkl libraries of lapack and blas failed
Hi, I am trying to compile a big program called PLUMED which needs libraries of lapack and blas. I am using icc compilers in a Red Hat Enterprise Linux Server release 5.7, and I assigned the...
View ArticleProblems with Static Linking with MKL
Hello, We need your assistance with using the MKL library. We are using the following configuration: OS – Ubuntu 12.04 LTS 32 bit. SDK – Eclipse 3.7.2. Compiler - Intel IA-32 C++ Compiler (v13.0.0),...
View ArticleLAPACKE_ilaver on MKL
Hello,I'm trying to use the function LAPACKE_ilaver with MKL 11.1. The declaration of function is included in the lapacke.h file from the Lapack netlib's distribution. But I have not found it in the...
View ArticleQuestion about MKL_DCSRSM routine
I am trying to solve for x in Ax=B, where A is a symmetric positive definite square sparse matrix, B is a matrix with the same numbers of rows as A and multiple columns, and x has the same dimensions...
View ArticleSparse Eigensolver Question
I'm looking for a sparse eigenvalue solver that returns just the number of eigenvalues starting from the lowest one that I specify rather than all of them between emin and emax. For example, I would...
View Articlesegmentation fault
Hello everyone,I am new usint MKL and get an "segmentation fault" error with my first MKL-programm. Can anyone help me?My program computes:A = alpha * B + beta * CIt should be very easy. Segmentation...
View ArticleIndices in IPIV array for LU related functions
Hello,All LU (and also QR with column pivoting) related LAPACK functions has as an argument an array IPIV that stores the indices of row (columns for QR) permutations. In the MKL LAPACKE C interface,...
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Problem with cblas and gf
Should I expect different behaviour of cblas_zdotc_sub from the libmkl_intel_lp64 and libmkl_gf_lp64 libraries? The latter gives me an unexpected result. Please see the attached program. I get$ gcc...
View ArticleMKL crashes in mkl_vml_kernel_sSub
Hi,I'm porting a Windows C/C++ application that uses MKL to the Macintosh, and am running into a crash almost immediately.The call I'm doing is this:vsSub(&len, src1, src2, dest);, where len is...
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Problem with Pardiso matrix checker: matrix type is not real
Hello,I want to use Pardiso to solve a linear equation system with a real unsymmetric matrix. I adapted the example pardiso_unsym.f to my Fortran90-code. It runs for the linear equation system in the...
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