LAPACKE_dggevx question for nonsymmetric evp
Dear all,I am puzzling with a problem on the setting of input parameters toLAPACKE_dggevxnamely, ldvr, the size of the leading dimension of the right eigenvectors. It is mentioned in the manualIf...
View Articlesolve ill-conditioned linear system
Hello,I would like to solve a linear system Ax = b with : int ia[10] = {1, 5, 9, 11, 15, 19, 21, 23, 25, 26}; int ja[25] = {1, 2, 4, 5, 2, 3, 5, 6, 3, 6, 4, 5, 7, 8, 5, 6, 8, 9, 6, 9,...
View ArticlevslSaveStreamF vslLoadStreamF
Are the files created by vslSaveStreamF with one version of mkl not loadable (vslLoadStreamF) with another version of mkl?
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pblas complex functions don't ask for complex variables
Hello,I've been trying to use the parallel blas, pblas, functions in a windows c++ environment and I've run into a problem with the complex functions. I am using the 'z' variation of all the functions...
View ArticlePARDISO PROBLEM
Dear developer:I am writing to you in order to inform you about an unusual behavior that pardiso solver exhibit in the latest version of mkl library. More specifically, we use this solver in our finite...
View ArticleSparse Matrix Multiplication
Hey all I am working on very big size of matrix which have more zeros value compare to non zeroes value(Sparse Matrix). I want to do multiplication of this two sparse matrix so is there any function...
View Articledgelss does not work
Hi,I am working on function "dgelss" to simulate pinv in Matlab. After I called dgelss() in MKL (lapack), the output info will be 0 which means execution is successful. But the result matrix does not...
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PARDISO reordering: incorrect description perm() array in the MKL manual
Hi! I want to use own reordering in PARDISO. From manual I see following description of perm() array: “Let A be the original matrix and C = P*A*PT be the permuted matrix. Row (column) i of A is the...
View ArticleHow to compute covariance matrix in MKL?
Given a 2D matrix A as input, how to compute its covariance matrix? For example, in Matlab, I use cov(A) to do the computation.Thanks
View ArticleOMP: Warning #90:..
Hi,Just downloaded and installed w_mkl_11.0.1.119.exeAfter running the first test I get the - bundle of- :OMP: Warning #90: ittnotify: Lookup of “__itt_<function>”function in...
View ArticleHow can I get residual or residual to norm from Pardiso solver?
Hi All,Can I get residual or residual to norm directly from pardiso output? If so, which variable/parameter shall I use?Thanks
View ArticleSobol initialization question
In the documentation provided in this web page :http://software.intel.com/sites/products/documentation/doclib/mkl_sa/11/...it is stated that unless one declares in params[2] that they want to overwrite...
View ArticleIs zhetrf threaded?
Hello.I found that zhetrf seems not to be threaded in MKL 11.0 against the document [1] says *hetrf are threaded.In my program, zhetrf uses only one thread, but zgetrf uses four threads. Does anyone...
View ArticleEmail notifications for the forum subscribers are disabled temporarily
Dear Customers,We’ve recently noticed spam posts in some of Intel Software Development Product forums. Our development team is working on effective blocking of spam posts. In the meantime, the Email...
View ArticlePardiso solver question
Hi,My question is about the direct sparse solver routine. I am using the dss interface to facotrize and invert a large coefficient matrix.I am successfully inverting the orginal problem Ax = b. In my...
View ArticlePardiso - There is no matching specific subroutine
Hi everybody!I have a problem with Pardiso in a fortran project. I am trying to write a simple routine to solve a linear system, but compilation stops at calling pardiso_64 (or pardiso in the case of...
View ArticleSolver settings in pardiso?
Hi All,My program have two solvers, solver A is based on Bi-CGSTAB acceleration that was developed by someone else before, and another one (solver B) is pardiso. I found for Pardiso works fine as...
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Why doesn't this run?
This simple test program crashes.I got it to link, .but apparently the documentation is not consistent with theway it is actually used.According to what it says,, I can get by with only two input...
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PARDISO (works with non-symm, fails with symm matrices)
Hi everbody,I've been struggling for days with a problem concerning my Taylor-Hood-Navier-Stokes-system. The PARDISO solver refuses to solve my symmetric Stokes-system correctly (upper triangular), but...
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MKL_DCOOMM giving incorrect answers
Hicomposer_xe_2011_sp1.7.256 and MKL_DCOOMMIn a test program attached as a file MKL_DCOOMM and DGEMM give different answers. The answer given by DGEMM is correct. I would be greatly obliged if anybody...
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