[petsc-users] Error installing PETSc with --download-f2cblaslapack

[Blondel, Sophie]

Thank you for the suggestion,

Getting openblas through conda fixed my issue!

Best,

Sophie
________________________________
From: Stefano Zampini <stefano.zampini at gmail.com>
Sent: Saturday, June 7, 2025 02:22
To: Blondel, Sophie <sblondel at utk.edu>
Cc: Barry Smith <bsmith at petsc.dev>; PETSc users list <petsc-users at mcs.anl.gov>
Subject: Re: [petsc-users] Error installing PETSc with --download-f2cblaslapack

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If conda is providing the external dependencies, why do you want download-f2cblaslapack and not use a conda provided one? Mkl or openblas for example

Stefano

On Sat, Jun 7, 2025, 02:20 Blondel, Sophie via petsc-users <petsc-users at mcs.anl.gov<mailto:petsc-users at mcs.anl.gov>> wrote:
Correct, I tried a few different python versions and mpi versions, conda is providing the external dependencies. Maybe it wrongly points to some base builds instead of the specific environment I set up.

Best,

Sophie

On Jun 6, 2025 7:12 PM, Barry Smith <bsmith at petsc.dev<mailto:bsmith at petsc.dev>> wrote:

  Send configure.log

  I assume you tried rerunning a few times? It seems like possibly a flaky filesystem problem.

  Barry


On Jun 6, 2025, at 6:56 PM, Blondel, Sophie via petsc-users <petsc-users at mcs.anl.gov<mailto:petsc-users at mcs.anl.gov>> wrote:

Hi,

I am getting an error when trying to install PETSc with --download-f2cblaslapack on Linux:
=============================================================================================
                   Installing F2CBLASLAPACK; this may take several minutes
=============================================================================================

*********************************************************************************************
           UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details):
---------------------------------------------------------------------------------------------
  Error moving
  /home/sophie/Workspace/xolotl-stable-source/external/petsc/arch-linux-c-opt/externalpackages/f2cblaslapack-3.8.0.q2
  libraries

With the error in configure.log (which is accurate, the file is not present in the folder):
=============================================================================================
                   Installing F2CBLASLAPACK; this may take several minutes
=============================================================================================
Executing: ['mkdir', '-p', '/home/sophie/Workspace/xolotl-stable-build/external/petsc_install/lib']
Executing: ['cp', '-f', 'libf2clapack.a', 'libf2cblas.a', '/home/sophie/Workspace/xolotl-stable-build/external/petsc_install/lib']
stdout: cp: cannot stat 'libf2clapack.a': No such file or directory
                    Error moving /home/sophie/Workspace/xolotl-stable-source/external/petsc/arch-linux-c-opt/externalpackages/f2cblaslapack-3.8.0.q2 libraries: Could not execute "[['mkdir', '-p', '/home/sophie/Workspace/xolotl-stable-build/external/petsc_install/lib'], ['cp', '-f', 'libf2clapack.a', 'libf2cblas.a', '/home/sophie/Workspace/xolotl-stable-build/external/petsc_install/lib']]":
cp: cannot stat 'libf2clapack.a': No such file or directory

The configure command is:
./configure --prefix=/home/sophie/Workspace/xolotl-stable-build/external/petsc_install --with-fc=0 --with-cuda=0 --with-mpi --with-openmp=0 --with-debugging=0 --with-shared-libraries --with-64-bit-indices --download-kokkos --download-kokkos-kernels --download-hdf5 --download-hdf5-configure-arguments=--enable-parallel --download-boost --download-f2cblaslapack --COPTFLAGS=-O3 --CXXOPTFLAGS=-O3
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The version of PETSc you are using is out-of-date, we recommend updating to the new release
 Available Version: 3.23.3   Installed Version: 3.22.2

Let me know what additional information I can provide to help identify the issue.

Best,

Sophie

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