[sorry - its --download-fblaslapack] What it does is:
1. gets the source tarball specified in config/BuildSystem/config/packages/fblaslapack.py i.e http://ftp.mcs.anl.gov/pub/petsc/externalpackages/fblaslapack-3.4.2.tar.gz 2. compiles it 3. installs it in PETSC_DIR/PETSC_ARCH/lib 4. Then configures PETSc to use this library Note: PETSc libraries also get installed in PETSC_DIR/PETSC_ARCH/lib Also check installation instructions at http://www.mcs.anl.gov/petsc/documentation/installation.html Satish On Tue, 20 Feb 2018, Ali Berk Kahraman wrote: > When I call --download-blaslapack, what does it do exactly? Where does it > install the library? Does it touch anything anything else (such as updating > versions of mpicc) ? My concern is that if I call download-blaslapack I will > "change" some stuff in the /usr/bin directory that might disable some other > program, package installed on the computer. > > > On 20-02-2018 19:34, Satish Balay wrote: > > On Tue, 20 Feb 2018, Ali Berk Kahraman wrote: > > > >> Hello All, > >> > >> I have access to a common computer in my school, and I want to use petsc on > >> it. The problem is that I do not have root access, and neither do I want > >> it. > >> The machine has OpenMPI installed in it, but no BLAS. Can I configure petsc > >> somehow without having any BLAS commands? If not, can I install BLAS > >> somehow > >> only on my own folder (/home/myfolder) without touching anything inside > >> /usr/ > >> folder? > > You don't need root access to install/use PETSc. > > > > And you can ask petsc configure to install any required or missing packages. > > > > ./configure CC=gcc FC=gfortran CXX=g++ --download-blaslapack > > --download-mpich > > make > > > > If you wish to install PETSc with a preinstalled mpi - you can do: > > > > ./configure CC=mpicc FC=mpif90 CXX=mpicxx --download-blaslapack > > make > > > > Satish > > >
