Indices 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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Loss of performance for DGEMM with matrix dimensions ~1500 using MKL 11.1
Hello,I'm using DGEMM from MKL 11.1 and Intel Composer XE 14.0.0.080 for benchmarking purposes. My system is a Intel Core i5-2500 and I run Debian GNU/Linux 64 bits. Attached I send the plots showing...
View ArticleParallel Studio XE/MKL Installation on Linux Mint 15
Hi,I'm trying installing the MKL package as part of the parallel studio xe suite or by itself. When trying both routes, the installer says that I'm missing a number of optional prerequisites because...
View ArticleMKL sgemm executed serial
Hi people,I am struggling with the threading of SGEMM in MKL called from C++. I am working on a rather big software that is parallelized with OpenMP. In one of the functions, I first set up matrices A...
View ArticleUbuntu + gcc-4.8 problems
Hi,I have two sets of computers. One has Ubuntu 12.04, the other one 13.10. The former works fine with Intel MKL 11.0, the later gives some weird link errors. The command line is the same on both...
View ArticleNonlinear optimizer
Does MKL have non linear optimizer functions with boundary constraints?I have a function(foo) that reads in parameters and calculates certain values. I have another function(foo2) that calculates the...
View Articleopenmp & mkl: getri inside $omp do trouble
Hello!I'm using IVF Compiler 11.0.066 and MKL 10.1So, I have this subroutine which is called from parallel $omp do cycle. In this subroutine I calculate inverse of a matrix, like this: call...
View ArticleBig performance differences of matrix inversion under windows and linux
I have one question about the performance of mkl functions under different platform, windows and linux. I wrote a small program using mkl to do matrix inversion. The...
View ArticleSymbol Lookup Error After Linking MKL with GCC
I am attempting to compile and link the following program with gcc.
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Memory growing when using MKL DFT descriptor in a C++ class
Hi,I've recently noticed an issue when using a MKL DFT_DESCRIPTOR_HANDLE in a C++ class where the memory usage continually increases as I create and dereference objects of the class. I believe I may...
View ArticleMKL license question
hiMy team would like to use the Intel MKL library, notably for its integration with Python-Numpy.What kind of license must be purchased for this case ? e.g. :- we would only need the 'precompiled'...
View ArticlePARDISO OOC: Value of MKL_PARDISO_OOC_MAX_CORE_SIZE
Is it possible to know the correct value of MKL_PARDISO_OOC_MAX_CORE_SIZE to factorize a matrix in OOC mode? I have seen the suggested value only after an error, and not from the analysis stage. Having...
View Article11.1 update 2 release timeframe?
Will MKL 11.1 Update 2 be released soon? I'm in the process of updating to 11.1.1, and would like to wait for 11.1.2 if it will be available soon.Thank you.
View ArticleMac OS X 10.9.1 + MPICH2/3 + Intel Fortran 14.0.1 + Intel MKL 11.1 cause...
Earlier versions of Intel MKL (such as 10.x) work perfectly fine. I haven't found a single version of MPICH that does not crash the following code. The command line used to compile the code ismpif90...
View Articlelapacke_dpptrf could contain a bug
Hello, using the intel MKL 11.1 for windows, i discovered what seems a bug in LAPACKE C interface to Lapack: calling LAPACKE_dpptrf (Cholesky decomposition) with a packed LT row major matrix does not...
View Articlecblas_dscal metdod
Hello,I implemented below code segment to compare "memset", "for loop" and "cblas_dscal (Intel MKL)". The test results are as:memset: G0 = 0.000000 6954 nsfor: G0 = 1.000000 38741 nsMKL: G0 = 2.000000...
View Articlemex and OSX, symbol not found for libmkl_intel_thread.dylib library
Hi,I have the following problem. My OSI compile a mex file with the following command:/Applications/MATLAB_R2013b.app//bin/mex myfile.cpp mylib.a \ CXXFLAGS="\$CXXFLAGS -pthread -fPIC -DNDEBUG...
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