Warning: ieee_invalid

Problems running VASP: crashes, internal errors, "wrong" results.

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tobias_kloeffel
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Warning: ieee_invalid

#1 Post by tobias_kloeffel » Thu Jun 10, 2021 4:49 pm

Dear all,

I just compiled VASP OpenACC (see attached makefile.include) and sucessfully run all tests.
However, I see a lot of ieee floating point warnings:

Warning: ieee_invalid is signaling
Warning: ieee_divide_by_zero is signaling
Warning: ieee_overflow is signaling
Warning: ieee_underflow is signaling
Warning: ieee_inexact is signaling
FORTRAN STOP

Is this already known? It does not seem to effect the results:
==================================================================
SUCCESS: ALL SELECTED TESTS PASSED
==================================================================

Compiler: NVidia HPC-SDK 21.5
unrz008h@tg091:~$ nvfortran -V

nvfortran 21.5-0 LLVM 64-bit target on x86-64 Linux -tp zen
NVIDIA Compilers and Tools
Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.

Host CPU: 2x AMD 7662
GPU: A100-SMX4-40GB
MKL intel-mkl-2020.3.279
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:hsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 9.3.0-17ubuntu1~20.04' --with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-9 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-9-HskZEa/gcc-9-9.3.0/debian/tmp-nvptx/usr,hsa --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)

Best,
Tobias
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martin.schlipf
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Joined: Fri Nov 08, 2019 7:18 am

Re: Warning: ieee_invalid

#2 Post by martin.schlipf » Fri Jun 11, 2021 7:01 am

We are aware that running the code with all checks enabled will raise some warnings. However if your tests run and produce the expected results, the code should be setup properly.

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