Hello,
I tried to run step-18 and initially received the following error message:
Error! This tutorial requires a deal.II library that was configured with
the following options:
DEAL_II_WITH_MPI = ON
DEAL_II_WITH_PETSC = ON
DEAL_II_PETSC_WITH_COMPLEX = OFF
However, the deal.II library found at
/home/krishanu/Google_Drive/dealii/dealii_920/library_dealii_920 was
configured with these options
DEAL_II_WITH_MPI = OFF
DEAL_II_WITH_PETSC = OFF
DEAL_II_PETSC_WITH_COMPLEX =
which conflict with the requirements.
So, I used the following commands (from this link:
https://www.dealii.org/current/external-libs/petsc.html) to install PETSC:
tar xvzf petsc-x-y-z.tar.gz cd petsc-x-y-z
export PETSC_DIR=`pwd`
export PETSC_ARCH=x86_64
./config/configure.py --with-shared=1 --with-x=0 --with-mpi=1
--download-hypre=1
make
make test
Then used the following commands to build, configure and install deal.ii
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/path/to/install/dir ../deal.II
But it seems that deal.ii did not auto detect PETSC and MPI as it showed
the following among other configured features:
Configured Features (DEAL_II_ALLOW_BUNDLED = ON,
DEAL_II_ALLOW_AUTODETECTION = ON):
# ( DEAL_II_WITH_MPI = OFF )
# ( DEAL_II_WITH_PETSC = OFF )
I am wondering what I might be missing here. Could anyone please help?
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