Intel(R) Math Kernel Library for Linux* OS User's Guide

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8 Intel® Math Kernel Library User’s GuideExample 8-1 Aligning Addresses at 16-byte Boundaries// ******* C language *******...#include ...void *darray;int workspace;...// Allocate workspace aligned on 16-bit boundarydarray = mkl_malloc( sizeof(double)*workspace, 16 );...// call the program using MKLmkl_app( darray );...// Free workspacemkl_free( darray );! ******* Fortran language *******...double precision darraypointer (p_wrk,darray(1))integer workspace...! Allocate workspace aligned on 16-bit boundaryp_wrk = mkl_malloc( 8*workspace, 16 )...! call the program using MKLcall mkl_app( darray )...! Free workspacecall mkl_free(p_wrk)8-2
Working with the Intel®Math Kernel Library Cluster9SoftwareThis chapter discusses the usage of the Intel® Math Kernel Library (Intel® MKL)ScaLAPACK and Cluster FFTs.See Chapter 3 for details about the Intel MKL directory structure, including the availabledocumentation in the doc directory.For information on MP LINPACK Benchmark for Clusters, see Chapter 11.Intel MKL ScaLAPACK and Cluster FFTs support MPI implementations identified in the IntelMKL Release Notes.Linking with ScaLAPACK and Cluster FFTsTo link a program that calls ScaLAPACK and/or Cluster FFTs, you need to know how to linka message-passing interface (MPI) application first.Use mpi scripts to do this. For example, mpicc and mpif77 are C and FORTRAN 77scripts,respectively, that use the correct MPI header files. The location of these scripts and the MPIlibrary depends on your MPI implementation. For example, for the default installation ofMPICH, /opt/mpich/bin/mpicc and /opt/mpich/bin/mpif77 are the compiler scriptsand /opt/mpich/lib/libmpich.a is the MPI library.Check the documentation that comes with your MPI implementation forimplementation-specific details of linking.To link with the Intel MKL ScaLAPACK and/or Cluster FFTs, use the following general form: \-L [-Wl,--start-group] \ [-Wl,--end-group]where: is one of several MPI implementations (MPICH, Intel MPI 2.x/3.x, and so on).9-1
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