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Rashawn_K_Intel1
Employee
295 Views

ifx (2021.1-beta04) HPC Toolkit build error with -loopopt

Hello,

I posted this earlier in the Fortran Compilers sub-forum link, but it seems that it is not specific for oneAPI releases. The link to that post is here: https://software.intel.com/en-us/forums/intel-fortran-compiler/topic/848820. I will restate the issue here:

The PI of an HPC tool, Score-P, contacted me earlier today regarding an error discovered in the most recent beta of the HPC Toolkit with the Fortran compiler. The issue appears to be a conflict between Autoconf and the -loopopt option supplied to configure where the the -l is interpreted as a cue to link with the library oopopt.  The full description of the text the PI sent to me regarding the error is enclosed below. I downloaded the reproducer pointed to towards end of message, and I ran it using ifx with the Beta 04 on one of the gpu only DPCPP dev cloud machines,  and I encounter the same issue with -loopopt. The team is in Europe, and I do not know the specifics of their machine, but it is certainly Linux:

I just tried your new beta compilers in the context of Score-P. I ran into a problem with the Fortran compiler and autoconf, which I will describe below. Would it be possible for you to forward this report to the compiler developers?

Here the problem description:

ifx (2021.1-beta04) fails on autoconf (2.69) macros AC_F77_WRAPPERS/AC_FC_WRAPPERS [1] due to xfortcom's default option '-loopopt=0'

The command 

ifx -o conftest -g -v conftest.f'

calls 

/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/bin/xfortcom    -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all "-verify nomodule" -main-file-name conftest.f -target-cpu x86-64 -target-linker-version 2.30 -debug-info-kind=limited -dwarf-version=4 -mllvm -debug-line-version=2 -dwarf-column-info -D__unix__ -D__unix -D__linux__ -D__linux -D__gnu_linux__ -Dunix -Dlinux -D__ELF__ -D__x86_64 -D__x86_64__ -D__amd64 -D__amd64__ -D__INTEL_COMPILER_BUILD_DATE=20200118 -I/opt/intel/inteloneapi/tbb/2021.1-beta04/env/../include -I/opt/intel/inteloneapi/mpi/2021.1-beta04//include -I/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/include -I/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/compiler/include/intel64 -I/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/compiler/include -I/usr/local/include -I/usr/include -I/usr/include/x86_64-linux-gnu -O0 -fveclib=SVML -fno-inline -fno-inline-functions -mllvm -loopopt=0 -mllvm -enable-lv -mllvm -disable-hir-generate-mkl-call -mllvm -intel-libirc-allowed -o /tmp/ifxWAvMeA.o -D__INTEL_COMPILER=201900 -D__INTEL_COMPILER_UPDATE=0 -D__unix__ -D__unix -D__linux__ -D__linux -D__gnu_linux__ -Dunix -Dlinux -D__ELF__ -D__x86_64 -D__x86_64__ -D__amd64 -D__amd64__ -D__INTEL_COMPILER_BUILD_DATE=20200118 -I. -I/opt/intel/inteloneapi/tbb/2021.1-beta04/env/../include -I/opt/intel/inteloneapi/mpi/2021.1-beta04//include -I/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/include -I/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/compiler/include/intel64 -I/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/compiler/include -I/usr/local/include -I/usr/include -I/usr/include/x86_64-linux-gnu "-fp_modbits honor_f32_conversion" "-fp_modbits honor_f64_conversion" -O0 -g2 "-reentrancy threaded" -simd -offload_host conftest.f


Note the '-loopopt=0'. AC_F77_WRAPPERS/AC_FC_WRAPPERS identify this option as a library:

checking for Fortran libraries of ifx...  -loopopt=0 -L/opt/intel/inteloneapi/tbb/2021.1-beta04/env/../lib/intel64/gcc4.8 -L/opt/intel/inteloneapi/mpi/2021.1-beta04//libfabric/lib -L/opt/intel/inteloneapi/mpi/2021.1-beta04//lib/release -L/opt/intel/inteloneapi/mpi/2021.1-beta04//lib -L/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/lib -L/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/compiler/lib/intel64_lin -L/opt/intel/inteloneapi/mpi/2021.1-beta04//libfabric/lib/../lib/ -L/opt/intel/inteloneapi/mpi/2021.1-beta04//lib/../lib/ -L/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/lib/../lib/ -L/usr/lib/gcc/x86_64-linux-gnu/7/ -L/usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/ -L/usr/lib/gcc/x86_64-linux-gnu/7/../../../../lib/ -L/lib/x86_64-linux-gnu/ -L/lib/../lib64 -L/lib/../lib/ -L/usr/lib/x86_64-linux-gnu/ -L/usr/lib/../lib/ -L/opt/intel/inteloneapi/tbb/2021.1-beta04/env/../lib/intel64/gcc4.8/ -L/opt/intel/inteloneapi/mpi/2021.1-beta04//libfabric/lib/ -L/opt/intel/inteloneapi/mpi/2021.1-beta04//lib/release/ -L/opt/intel/inteloneapi/mpi/2021.1-beta04//lib/ -L/opt/intel/inteloneapi/compiler/2021.1-beta04/linux/lib/ -L/usr/lib/gcc/x86_64-linux-gnu/7/../../../ -L/lib64 -L/lib/ -L/usr/lib -lifport -lifcoremt -limf -lsvml -lm -lipgo -lirc -lpthread -lirc_s -ldl

When using these Fortran libraries in icx invocations the linker complains:

ld: cannot find -loopopt=0

Note that everything works fine with the 'old' ifort, also provided by the oneAPI package.

Would it be possible to rename '-loopopt' such that it doesn't start with '-l'? '-loopopt' seems to be a non-public option, at least it is not documented in 'ifx -help'. Thus renaming might cause no harm.

Please find a minimal reproducer until 2020-02-27 here: https://gigamove.rz.rwth-aachen.de/d/id/75hs9S9jCCLR2Y

Use like this:
tar xf loopopt.tar.gz
mkdir loopopt/_build
cd  loopopt/_build
../configure CC=icx FC=ifx F77=ifx

Your advice will be appreciated, and I will pass it on to the developers, as well as let them know about this forum.

Regards,

-Rashawn

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5 Replies
Feld__Christian
Beginner
295 Views

If I rename the xfortcom option -loopopt=0 to -qloopopt=0, the configure script succeeds. I tested the renaming with the following change to the reproducer's configure script, see https://gigamove.rz.rwth-aachen.de/d/id/75hs9S9jCCLR2Y

--- configure.orig	2020-02-14 10:33:42.827806795 +0000
+++ configure	2020-02-14 10:43:27.197241895 +0000
@@ -3525,7 +3525,7 @@
     ac_fc_v_output=`echo $ac_fc_v_output | sed 's/"//g'` ;;
 esac
 
-
+ac_fc_v_output=$(echo $ac_fc_v_output | sed 's/-loopopt=0/-qloopopt=0/g')
 
 ac_cv_fc_libs=
 

A renaming of -loopopt would be highly appreciated. Patching autoconf instead would also be a solution. But as the development of autoconf is basically on halt for several years now, this change is unlikely to reach the interested audience.

Thanks,
Christian

Feld__Christian
Beginner
295 Views

The team is in Europe, and I do not know the specifics of their machine, but it is certainly Linux:

I work under Linux in a docker container based on the Intel provided Dockerfile. The compiler version is 2021.1-beta04.

Thanks,
Christian

AbhishekD_Intel
Moderator
295 Views

Hi Rashawn,

We can run ./configure with ifort, you can use ../configure CC=icx FC=ifort F77=ifort command on beta04 toolkitbut we cannot run it with ifx it's giving the same error We have transferred this issue with ifx to our compiler team.

Thank You

-Abhishek

Rashawn_K_Intel1
Employee
295 Views

Good day Abhishek,

Thank you for confirming that ifort will work. I will pass this on to the users and let them know this ifx issue has been transferred to the compiler team.

Best regards,

-Rashawn

Barbara_P_Intel
Moderator
295 Views

Since this issue was also raised on the Fortran Forum and it is a Fortran issue, let's continue the discussion on the Fortran Forum

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