Scalapack routines intel math kernel library for fortran. Petsc portable, extensible toolkit for scientific computation, pronounced petsee the s is silent, is a suite of data structures and routines for the scalable parallel solution of scientific applications modeled by. Features highly optimized, threaded, and vectorized math functions that maximize performance on each processor. Using intel mkl blas and lapack with petsc intel software. Petsc extensible toolkit for scientific computation petsc. The compilation of petsc codes is deeply related to other packages, such as lapackblas and mpi implementations openmpi, mvapich or mpich. I am currently on a coupled vlasovnavierstokes system and i want numerical simulations.
Scalapack solves dense and banded linear systems, least squares problems, eigenvalue problems, and singular value problems, and is designed to. It is compatible with your choice of compilers, languages, operating systems, and linking and threading models. Enabling intel mkl in petsc applications intel software. Petsc, pronounced petsee the s is silent, is a suite of data structures and routines for the scalable parallel solution of scientific applications modeled by partial differential equations. The easiest way to configure petsc for damask is to let petsc download and install all. Mkl is available only on lc machines with x86based chips.
First get an up to date copy of the intel compiler, as well as the intel fortran. Petsc portable, extensible toolkit for scientific computation is an open source suite of data structures and routines for the parallel solution of scientific applications modelled by partial differential equations. Some are specialized to certain application areas, others are quite general. In my experience of building and installing petsc on ubuntu and centos, i found out that the procedure for installing petsc is often quite difficult, especially when using intel compilers. Thanks artem, i reduced number of parameters and now configured petsc with mkl.
Compiling with your own petsc and slepc builds freefem. There is a tar file that can be downloaded to ra that contains the source for the various programs, most in both c and fortran, a makefile, and a pbs script. The configure finally worked when i added withscalapackincludeusrlocal. Same as above but do not have a fortran compiler and want to use petsc from c.
Run with withblaslib to indicate the library containing blas. I built petsc with intel mkl in both linux and windows7 with intel compilers. It supports mpi, and gpus through cuda or opencl, as well as hybrid mpigpu parallelism. An exemplary configure line for petsc is download and unpack petsc. Intel math kernel library implements routines from the scalapack package for distributedmemory architectures. Configure petsc with mkl by adding withblaslapackdirpathtomkl to.
If i compare results for typical model poisson equation, 220220220 cells, pretty sparse matrix, kspbcgs i dont see any improvements. Petsc sometimes called petsc tao also contains the tao optimization software library. Scalapack for python scalapy scalapy is a wrapping of scalapack such that it can be called by python in a friendly manner. Download the all the scalapack precompiled binaries. Im trying to systematize the compilation of freefem in my machines, making it as clean as possible, and id like to build freefem using my own petsc and slepc builds installed in custom prefixes, but i wasnt able to. Scalapack is a library of highperformance linear algebra routines for distributedmemory messagepassing mimd computers. You might also consider using downloadscalapack instead. Scalapack supports routines for the systems of equations with the following types of matrices. Replaced download fblaslapack1 with download f2cblaslapack1 in the petsc config command installed mumps and scalapack through homebrew using. This page gives a number of intel math kernel library mkl examples, in particular calls to routines that are part of the scalapack group of routines. Please, visit petsc website for advanced configuration options.
Lapack c interface is now included in the lapack package in the lapacke directory. I have a running code for sequential computing but it is too slow. Operations are performed on distributedmatrix objects which can be easily created whilst hiding all the nasty details of block cyclic distribution. These variables can be set as envirnment variables or specified on the command line to both configure and make. For petgem executions, petsc must be build for complexvalued numbers. Petsc now downloads a decent version of mpi during installation, so no. In order to avoid incompatibilities between petsc, petsc4py and petgem, we highly recommend the following configuration lines. High performance computing at louisiana state university. Versions and availability display softenv keys for scalapack. After quite a few attempts, i was finally successful.
Then, it is important that petsc is configured with a working mpi implementation. Wiki and git repository covering the status and enablement of hpc software packages for the arm architecture. These atomic operations may be linear algebra operations, eigenvalue problems, interpolation, integration. Installation of petsc on os x with already compiled mumps and scalapack through homebrew. Installation of petsc on os x with already compiled mumps. For some reason the windows petsc lib is much slower than the linux lib in solving linear equation systems the linux and win7 workstations have about the same speed based on other tests. Petsc fails on cluster could not find a functional blas. Installing petsc using intel compilers chennakesava kadapa. In my experience of building and installing petsc on ubuntu and centos, i found. Intels threaded math kernel library mkl is a set of math libraries containing optimized blas, lapack, scalapack, fft and other routines in the lc linux environment. But petsc doesnt provide interface to these packages they are provides to satisfy dependencies of some externalpackages for eg. In this section we will take a brief look at the petsc library for sparse matrix computations, and the blaslapack libraries for dense computations. All these related packages were associated with petsc based on the same version of compiler when we installed petsc on a specific hpc machine. Is this a common trend or are there other factors at play.
File names of the precomputed debug libraries end with the letter d e. Preamble for reference purposes, the lapack installation provides an untuned version of the. Intel math kernel library scalapack,lapack examples. If you have a clean environment not working mpiblaslapack, then run. Petsc is developed as opensource software and can be downloaded from the argonne national laboratory. I attended the tutorial sessions of the freefem days in december, when petsc was extensively used. For best parallel execution mumps and scalapack are recommended. These names might depend on your mpi library andor compiler suite. Matsolvermumps a matrix type providing direct solvers lu and cholesky for distributed and sequential matrices via the external package mumps. I found with the petsc configure option download fblaslapack my program runs twice as fast over running it with mkl. So, in this blog, i am sharing my recent efforts at the installation of petsc library. We suggest using the online documentation and only recommend using this download if you have no or very slow internet access. Scientific libraries texas advanced computing center.
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