Petsc, Slepc安装

Petsc需要blas, lapack, mpi。blas和lapack可以用atlas+lapack整合的方式,mpi(mpich2或者openmpi)必须用源程序编译安装。

configure -prefix=/opt/mpich2 |& tee c.txt
make 2>&1 | tee m.txt

atlas+lapack的方法在ATLAS Installation Guide可以找到。

目前在Petsc上配置的软件包:
./configure –with-blas-lapack-dir=/opt/atlas/lib –with-mpi-dir=/opt/mpich2 –with-scalar-type=complex –with-clanguage=c –with-fortran-kernels=generic –download-scalapack=1 –download-mumps=1 –download-superlu=1 –download-plapack=1 –with-debugging=0 –download-fftw=1 –download-blacs=1 –download-parmetis=1 –download-blopex=1

目前FFTW包的路径与petsc中用的不相符,需要手动下载,然后以–download-fftw=/home/……/fftw-3.3.2.tar.gz参数告诉configure

《Petsc, Slepc安装》有5个想法

    1. Work-around:

      1. Compile Petsc with –prefix=…(for example /opt/petsc)
      2. configure SLEPC with simply ./configure (no options, although we want it to be at /opt/slepc)
      3. Edit the slepcvariables file under the “PETSC_ARCH” directory so that the SLEPC_DESDIR=/opt/slepc
      4. Build SLEPC and then install, the whole lib and include files will be moved to the proper place, which here is /opt/slepc
      5. Replace those /$PETSC_ARCH/ in configuration files under /opt/slepc with /, i.e. get rid of such extra level of directory.
      6. Test and done.

      Final question, why cann’t those programmers of Slepc solve this problem for us, or maybe there are ways to do so but I just don’t know.

      1. 看起来问题已经解决了。
        export PETSC_DIR=/opt/petsc
        unset PETSC_ARCH
        cd $SLEPC_DIR
        ./configure –prefix=/opt/slepc
        make PETSC_ARCH=arch-installed-petsc
        make PETSC_ARCH=arch-installed-petsc install
        export SLEPC_DIR=/opt/slepc

  1. atlas+lapack的方法: install first gcc, build-essential and gfortran

    1、在atlas目录下获取优化参数:
    mkdir bogus
    cd bogus
    ../configure -b 64 -D c -DPentiumCPS=2933 -Fa alg -fPIC
    fgrep “F77 =” Make.inc
    ${Fortran}
    fgrep “F77FLAGS =” Make.inc
    ${Opts}

    2、修改lapack下的make.inc文件,取gfortran那个,按照上面获得的参数
    gedit make.inc
    FORTRAN = ${Fortran}
    OPTS = ${Opts}
    DRVOPTS = $(OPTS)
    NOOPT = ${OPTS} – O
    LOADER = $(FORTRAN)
    LOADOPTS = $(OPTS)
    TIMER = INT_ETIME

    3、安装lapack
    make lib
    4、配置与安装atlas
    mkdir build
    cd build
    ../configure -b 64 -D c -DPentiumCPS=2933 -Fa alg -fPIC –prefix=/opt/atlas –with-netlib-lapack=/home/…/lapack/lapack_LINUX.a
    make
    make check
    make time
    sudo make install
    make shared
    Move the .so files if one wishes

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