[petsc-users] Install PETSc 3.14 with Conda type environment

[Barry Smith]

  Excellent, thanks for letting us know.

> On Nov 15, 2020, at 6:38 PM, Zou, Ling <lzou at anl.gov> wrote:
> 
> Barry, you were right. That was the gcc version issue.
> This has been resolved with later version of gcc.
>  
> -Ling
>  
> From: petsc-users <petsc-users-bounces at mcs.anl.gov <mailto:petsc-users-bounces at mcs.anl.gov>>
> Date: Sunday, November 15, 2020 at 5:03 PM
> To: Barry Smith <bsmith at petsc.dev <mailto:bsmith at petsc.dev>>
> Cc: petsc-users at mcs.anl.gov <mailto:petsc-users at mcs.anl.gov> <petsc-users at mcs.anl.gov <mailto:petsc-users at mcs.anl.gov>>
> Subject: Re: [petsc-users] Install PETSc 3.14 with Conda type environment
> 
> LOL, you are definitely right about the gcc version.
> I am still new to conda, and pulled out whatever comes first (through some quick google search).
>  
> I will update my gcc, and let you know.
>  
> -Ling
>  
> From: Barry Smith <bsmith at petsc.dev <mailto:bsmith at petsc.dev>>
> Date: Sunday, November 15, 2020 at 4:46 PM
> To: Zou, Ling <lzou at anl.gov <mailto:lzou at anl.gov>>
> Cc: petsc-users at mcs.anl.gov <mailto:petsc-users at mcs.anl.gov> <petsc-users at mcs.anl.gov <mailto:petsc-users at mcs.anl.gov>>
> Subject: Re: [petsc-users] Install PETSc 3.14 with Conda type environment
> 
>  Ling,
>  
>  Configure  is failing here.
>  
> TESTING: checkCPreprocessor from config.setCompilers(config/BuildSystem/config/setCompilers.py:699)
>   Locate a functional C preprocessor
> Checking for program /Users/lzou/miniconda3/bin/gcc...found
>               Defined make macro "CPP" to "gcc -E"
> Preprocessing source:
> #include "confdefs.h"
> #include "conffix.h"
> #include <stdlib.h>
> Executing: gcc -E  -I/var/folders/fd/yx1jblsj2rzb981kx8ksm03ssqvm65/T/petsc-2jvhontx/config.setCompilers  /var/folders/fd/yx1jblsj2rzb981kx8ksm03ssqvm65/T/petsc-2jvhontx/config.setCompilers/conftest.c 
> Possible ERROR while running preprocessor: exit code 1
> stdout:
> # 1 "/var/folders/fd/yx1jblsj2rzb981kx8ksm03ssqvm65/T/petsc-2jvhontx/config.setCompilers/conftest.c"
>  
> So for some reason the gcc -E seems to work correctly but produces an non-zero exit code? 
>  
> I notice something very concerning in your Conda environment. It seems to have a gcc (GCC) 4.8.5 which is more ancient than my son who is in college. I cannot imagine you would want to use such an old compiler. Perhaps if you upgrade the Conda environment to use a recent gcc then the other problem will go away. 
>  
> Please give that a try and let us know how it goes, send configure.log again if configure still fails.
>  
>   Good luck,
>  
>   Barry
>  
>  
>   Locate a functional C compiler
> Checking for program /Users/lzou/miniconda3/bin/gcc...found
> Executing: gcc --version
> stdout:
> gcc (GCC) 4.8.5
> Copyright (C) 2015 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>  
> 
> 
> 
> On Nov 15, 2020, at 4:27 PM, Zou, Ling via petsc-users <petsc-users at mcs.anl.gov <mailto:petsc-users at mcs.anl.gov>> wrote:
>  
> Hi,
>  
> I have installed PETSc many times before, so not so new to it.
> Recently, I have switched to conda system to manage my working environment, and would like to reinstall PETSc, and had some issue during the ‘config’ stage:
>  
> *******************************************************************************
>          UNABLE to CONFIGURE with GIVEN OPTIONS    (see configure.log for details):
> -------------------------------------------------------------------------------
> Cannot find a C preprocessor
> *******************************************************************************
>  
> Config file is also attached.
> Appreciate your help.
>  
> -Ling
> <configure.log>

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