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FindPETSC.cmake
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FindPETSC.cmake
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#
# PETSc
#
# When you configure and install PETSc, set PETSC_ROOT to some /root/dir/of/petsc/
# and PETSC_ARCH to petsc-arch-real (if you intend to solve real problems) and/or
# petsc-arch-complex (if you intend to solve complex problems). Then, in order to
# configure Hermes with PETSc, you need to say (in global CMake.vars):
# set(WITH_PETSC YES)
# set(PETSC_ROOT /root/dir/of/petsc/)
# set(PETSC_ARCH petsc-arch)
#
# Example:
# In PETSc source directory (this is automatically done by the
# standalone-install script when using the prepackaged library from hpfem/solvers):
# ./config/configure.py PETSC_ARCH=linux-cxx-real --with-clanguage=cxx
# make PETSC_DIR=/opt/petsc/petsc-3.1-p7 PETSC_ARCH=linux-cxx-real all
# ./config/configure.py PETSC_ARCH=linux-cxx-complex --with-clanguage=cxx --with-scalar-type=complex
# make PETSC_DIR=/opt/petsc/petsc-3.1-p7 PETSC_ARCH=linux-mpicxx-complex all
#
# In hermes/CMake.vars:
# set(WITH_PETSC YES)
# set(PETSC_ROOT /opt/petsc/petsc-3.1-p7)
# set(PETSC_ARCH linux-cxx)
#
SET(COMMON_PETSC_INCLUDE_DIRS
/usr/lib/petscdir/3.1/include
/usr/include
/usr/local/include
)
SET(COMMON_PETSC_LIB_DIRS
/usr/lib/petscdir/3.1/linux-gnu-cxx-opt
/usr/lib/petscdir/3.1/linux-gnu-c-opt/lib
/usr/lib
/usr/local/lib
/usr/lib/petscdir/3.1/lib
)
FIND_PATH(PETSC_INCLUDE_DIRS petsc.h ${COMMON_PETSC_INCLUDE_DIRS})
# PETSc 3.1
FIND_LIBRARY(PETSC_LIB_C petsc ${COMMON_PETSC_LIB_DIRS})
IF (PETSC_INCLUDE_DIRS AND PETSC_LIB_C)
SET(PETSC_FOUND TRUE)
SET(PETSC_CPLX_LIBRARIES ${PETSC_LIB_C})
ENDIF (PETSC_INCLUDE_DIRS AND PETSC_LIB_C)
IF (PETSC_FOUND)
IF (NOT PETSC_FIND_QUIETLY)
MESSAGE(STATUS "PETSc found: ${PETSC_LIB_C}")
ENDIF (NOT PETSC_FIND_QUIETLY)
ELSE (PETSC_FOUND)
IF (PETSC_FIND_REQUIRED)
MESSAGE( FATAL_ERROR
"PETSC could not be found. Either disable it by setting
WITH_PETSC to NO in your CMake.vars file, or install it according to
instructions at\n
<http://hpfem.org/hermes/doc/src/installation/matrix_solvers/petsc.html>."
)
ENDIF (PETSC_FIND_REQUIRED)
ENDIF (PETSC_FOUND)