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Extended eigensolver (FEAST) segfaults

Hi,I'm calling the FEAST eigensolver using matrices assembled by PETSc (sparse CSR) and it segfaults when running PARDISO. Here is the stack:#8  <signal handler called> #9  0x00002b0221661836 in...

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uninstall+cluster studio2013 for windows64

hello:I cant uninstall the cluster studio 2013 for windows64, which always causes a crack. The crack step is shown in figure following.can you help me?    

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wrong result when using openmp with DCT

Hi,I am trying to use openmp with DCT transform to speedup the performance. The program works fine when I set omp_num_threads=1, when I set it to >1, I can see the CPU load is doubled but the result...

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The compiling problems in intel ODE solver

Hi,I am installing intel ODE solver on a linux 64-bit OS system I used the intel fortran compiler.Following the installation manual, I've tried to run the examples by doing :ifort -static...

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Linear systems with complex-number

dear all,I would like to know if there is some MKL routines to solve a sparse linear system where some elements are complex number.Thanks a lot

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triangular solver

I am using the mkl_?coosv, specifically one with d, and compiled the program with 'ifort -openmp -mkl'. I have set 'mkl_omp_num_threads', and also 'omp_proc_bind=true'. I have tested it for three...

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Dense * Sparse matrix calculations, is there an easier way

I am porting code (C, so row major) which makes use of ?gemm, ?syrk and ?syr2k calls from dense matrices to sparse matrices, and would to know if there is a simpler way of calculating the various...

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Register Now for the Webinar: New Intel® Math Kernel Library Features Boost...

Title: New Intel® Math Kernel Library Features Boost Performance for Tiny and Gigantic Computations Date/Time: Tue, Oct 28, 2014 9:00 AM - 10:00 AM PDT Registration Link:...

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consecutive call of pardiso

Hi.When sovling a set of linear equations, a typical example program calls pardiso four times,with parameter phase = 11, 22, 33, and -1.If i want to solve n of linear systems, each with the same...

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Performance of matmul vs dgemm for small size matrices

Hi,my question is regarding improving the performance of following line:------------------------MKM = MD*FA1 - MATMUL(MATMUL(MATMUL(ME,MQ),TRANSPOSE(MG)),TRANSPOSE(ME)) +...

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PARDISO - Phase 33

HelloI am solving (relatively) a big system with PARDISO (6810921 nonzero terms, 64080 equations, and 508 columns in load vector). I am calling Phase 11, 22 and 33.I just noticed that PARDISO tries to...

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LU factorization of band matrix

I try to use https://software.intel.com/sites/products/documentation/doclib/iss/2013/mkl/mklman/GUID-03E2AA41-0886-485D-B0D7-1C2186119220.htm routine for band matrix factorization. I've wrote simple...

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A bug in dcg_get?

I wrote a small code calling the RCI CG routine with the ILU0 preconditioner. The code is attached. The code returns an incorrect vector of all zeros as a solution. I have noticed that the vector tmp...

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Parallelization of dpotri and dpotrf

I measured the time needed to invert a symmetric positive definite matrix with dpotrf and dpotri in parallel on a 32-core Sandy Bridge machine and got quite surprising results:Although the...

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Steps to link LAPACK in Fortran 90 using Visual Studio 2008

Good afternoon,I would deeply appreciate if anybody can help me with the clear steps to link and be able to call a subroutine from the LAPACK library.I am working with Fortran 90 via Microsoft Visual...

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passing additional parameters to RHS function of ODE solver

Hi,I am trying to use the Intel's ODE solver to solver a system of equations. Below is the how the RHS function is supposed to be defined (from manual):subroutine <name>(n, t, y, f) integer n...

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log sum and under/overflow

I have converted some neural net code from matlab which consists of adding/subtracting very small probabilities and is of the form log( sum( Array) ). This may be affected by underflow. There is a...

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cluster_sparse_solver discrepancy

Hello,I'm trying to solve a general system with CPARDISO. When using two processes, there is no issue if I don't use the coefficient array during the solution phase. When using only one process, then I...

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Installing MKL Blas95 and Lapack95 for Intel Fortran

Hi,I am using Intel Parallel Studio XE Composer 2013 (formerly Intel Fortran Composer XE 2013) together with Microsoft Visual Studio 2012 Professional to write Fortran programs.  I would like to...

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Dynamic Linking fails due to undefined reference to __isoc99_sscanf

I've recently upgraded from Intel Fortran 2013 to 2015 and now I'm having trouble linking with MKL on Linux. Now, any kind of linking (dynamic, static, or with just -static-intel) fails with errors due...

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