[petsc-users] compile PETSc on win using clang

Tue Jan 24 22:19:48 CST 2023

Sorry, I don't know too much about clang. Our code is compiled on win using clang and that's why I want to compile PETSc using clang as well.

-----Original Message-----
From: Satish Balay <balay at mcs.anl.gov> 
Sent: Tuesday, January 24, 2023 7:37 PM
To: Guo, Sam (DI SW STS SDDEV MECH PHY FEA FW) <sam.guo at siemens.com>
Cc: petsc-users <petsc-users at mcs.anl.gov>
Subject: Re: [petsc-users] compile PETSc on win using clang

Here is my prior message:

>>>>>>
https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.wikihow.com%2FInstall-Clang-on-Windows&data=05%7C01%7Csam.guo%40siemens.com%7C2dcacf01ab3848588c5908dafe856a17%7C38ae3bcd95794fd4addab42e1495d55a%7C1%7C0%7C638102146240080885%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=pUZfgzke8JGODkOLNR1101lrdINswnqqg2kM%2FOAN2kU%3D&reserved=0

Is the clang you have from visual studio - as described above?

We don't have experience with using this variant of clang.

If its compatible with 'cl' - and supports the same command interface as 'cl' then the following might work [assuming clang.exe is the compiler binary installed - and available in PATH]:

'--with-cc=win32fe cl --use clang'
<<<<

However I see:

>>>
/home/xian/dev/compilers/win64/clang11.1.0/bin/
<<<

Clearly its not the above compiler [with the above constraints] - so the above instructions won't work.

How do you get this compiler? 

Any particular reason you need to build PETSc with this compiler?

Satish

On Wed, 25 Jan 2023, Guo, Sam wrote:

> I've added the path to clang to PATH but configuration still failed. configure.log is attached. Thanks a lot for your help.
> ________________________________
> From: Satish Balay <balay at mcs.anl.gov>
> Sent: Tuesday, January 24, 2023 5:36 PM
> To: Guo, Sam (DI SW STS SDDEV MECH PHY FEA FW) <sam.guo at siemens.com>
> Cc: petsc-users <petsc-users at mcs.anl.gov>
> Subject: Re: [petsc-users] compile PETSc on win using clang
> 
> Do you have clang in your PATH? Is the binary named clang for something else?
> 
> 
> >>>>>>>
>               Defined make macro "CC" to "/home/xian/dev/star/petsc/lib/petsc/bin/win32fe/win32fe cl --use clang"
> Executing: /home/xian/dev/star/petsc/lib/petsc/bin/win32fe/win32fe cl 
> --use clang -c -o /tmp/petsc-t4q6osvc/config.setCompilers/conftest.o 
> -I/tmp/petsc-t4q6osvc/config.setCompilers -O2 -MD -wd4996  
> /tmp/petsc-t4q6osvc/config.setCompilers/conftest.c
> Possible ERROR while running compiler: exit code 15
> Source:
> #include "confdefs.h"
> #include "conffix.h"
> 
> int main() {
> ;
>   return 0;
> }
> 
>           Error testing C compiler: Cannot compile C with /home/xian/dev/star/petsc/lib/petsc/bin/win32fe/win32fe cl --use clang.
> 
> <<<<<<
> 
> You can try this test below manually - with the --verbose option. [I 
> don't have clang - so using 'cl' here]
> 
> >>>>>>
> balay at ps5 ~/petsc/src/benchmarks
> $ ~/petsc/lib/petsc/bin/win32fe/win32fe cl --use cl --verbose sizeof.c
> 
> Using tool: cl
> Win32 Development Tool Front End, version 1.11.4 Fri, Sep 10, 2021  
> 6:33:40 PM Attempting to create file: C:\cygwin64\tmp\wfe2972.tmp cl 
> Microsoft (R) C/C++ Optimizing Compiler Version 19.30.30709 for x64 
> del C:\cygwin64\tmp\wfe2972.tmp Attempting to create file: 
> C:\cygwin64\tmp\wfe2983.tmp cl sizeof.c -link Microsoft (R) C/C++ 
> Optimizing Compiler Version 19.30.30709 for x64 Copyright (C) 
> Microsoft Corporation.  All rights reserved.
> 
> sizeof.c
> Microsoft (R) Incremental Linker Version 14.30.30709.0 Copyright (C) 
> Microsoft Corporation.  All rights reserved.
> 
> /out:sizeof.exe
> sizeof.obj
> del C:\cygwin64\tmp\wfe2983.tmp
> 
> balay at ps5 ~/petsc/src/benchmarks
> $ ~/petsc/lib/petsc/bin/win32fe/win32fe cl --use dummy-binary 
> --verbose sizeof.c
> 
> Using tool: dummy-binary
> Win32 Development Tool Front End, version 1.11.4 Fri, Sep 10, 2021  
> 6:33:40 PM Attempting to create file: C:\cygwin64\tmp\wfe6AD0.tmp 
> dummy-binary win32feutils::CreateProcess failed.
> dummy-binary
> The system cannot find the file specified.
> 
> del C:\cygwin64\tmp\wfe6AD0.tmp
> 
> balay at ps5 ~/petsc/src/benchmarks
> $
> 
> <<<<<<<
> 
> Satish
> 
> 
> 
> On Wed, 25 Jan 2023, Guo, Sam wrote:
> 
> > configure.log with -with-cc="win32fe cl --use clang"
> > ________________________________
> > From: Satish Balay <balay at mcs.anl.gov>
> > Sent: Tuesday, January 24, 2023 5:15 PM
> > To: Guo, Sam (DI SW STS SDDEV MECH PHY FEA FW) <sam.guo at siemens.com>
> > Cc: Barry Smith <bsmith at petsc.dev>; petsc-users 
> > <petsc-users at mcs.anl.gov>
> > Subject: Re: [petsc-users] compile PETSc on win using clang
> >
> > Configure Options: --configModules=PETSc.Configure 
> > --optionsModule=config.compilerOptions --with-cc="win32fe cl" --use 
> > win32fe clang --with-fc=0
> >  --with-debugging=0 -CFLAGS="-O2 -MD -wd4996" -CXXFLAGS="-O2 -MD 
> > -wd4996" --with-mpi=0 --with-clean=1 --force --with-scalar-type=real  --ignore-cygwin-link -CFLAGS="-O2 -MD -wd4996" -CXXFLAGS="-O2 -MD -wd4996"
> >
> > It should be --with-cc="win32fe cl --use clang"
> >
> > But then - this mode is untested with configure - so there could be other issues.
> >
> > Also - do you need c++? If not - use --with-cxx=0. This can avoid 
> > the error below. [for clang++ - you might need --with-cxx="win32fe 
> > cl --use clang++" - again untested - so might not work..]
> >
> > Satish
> >
> >
> > On Tue, 24 Jan 2023, Guo, Sam wrote:
> >
> > > Attached please find configure.log.
> > >
> > > error messgae:
> > > C:\home\xian\dev\star\petsc\src\sys\objects\device\INTERF~1\device
> > > .cxx(486): error C2065: 'PETSC_DEVICE_CASE': undeclared identifier
> > >
> > > ________________________________
> > > From: Satish Balay <balay at mcs.anl.gov>
> > > Sent: Tuesday, January 24, 2023 2:00 PM
> > > To: Barry Smith <bsmith at petsc.dev>
> > > Cc: Guo, Sam (DI SW STS SDDEV MECH PHY FEA FW) 
> > > <sam.guo at siemens.com>; petsc-users at mcs.anl.gov 
> > > <petsc-users at mcs.anl.gov>
> > > Subject: Re: [petsc-users] compile PETSc on win using clang
> > >
> > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2F
> > > www.wikihow.com%2FInstall-Clang-on-Windows&data=05%7C01%7Csam.guo%
> > > 40siemens.com%7C2dcacf01ab3848588c5908dafe856a17%7C38ae3bcd95794fd
> > > 4addab42e1495d55a%7C1%7C0%7C638102146240080885%7CUnknown%7CTWFpbGZ
> > > sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6M
> > > n0%3D%7C3000%7C%7C%7C&sdata=pUZfgzke8JGODkOLNR1101lrdINswnqqg2kM%2
> > > FOAN2kU%3D&reserved=0
> > >
> > > Is the clang you have from visual studio - as described above?
> > >
> > > We don't have experience with using this variant of clang.
> > >
> > > If its compatible with 'cl' - and supports the same command interface as 'cl' then the following might work [assuming clang.exe is the compiler binary installed - and available in PATH]:
> > >
> > > '--with-cc=win32fe cl --use clang'
> > >
> > > Satish
> > >
> > >
> > > On Tue, 24 Jan 2023, Barry Smith wrote:
> > >
> > > >
> > > >    Are you using clang as a replacement for the
> > > >
> > > >    *  "Unix-like" Cygwin GNU compilers compilers or
> > > >
> > > >    *  MinGW GNU compilers that are compatible with the Microsoft compilers?
> > > >
> > > >   If the former, follow the instructions for using the Cygwin GNU compilers, if the latter follow the directions for the MinGW compilers.
> > > >
> > > >   Send the configure.log and make.log if things go wrong and we'll help you out.
> > > >
> > > >   Barry
> > > >
> > > >
> > > >
> > > >
> > > > > On Jan 24, 2023, at 4:01 PM, Guo, Sam <sam.guo at siemens.com> wrote:
> > > > >
> > > > > Hi PETSc dev team,
> > > > >    I try to compile PETSc on win using clang. I am wondering if you could give me some hint. (I’ve already made intel compiler work on win using win32fe icl).
> > > > >
> > > > > Thanks,
> > > > > Sam Guo
> > > >
> > > >
> > >
> >
> 