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problem with option -tp in pgf77 and pgf90 6.0
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scheurer



Joined: 27 Oct 2004
Posts: 4

PostPosted: Fri Nov 25, 2005 5:17 am    Post subject: problem with option -tp in pgf77 and pgf90 6.0 Reply with quote

We are running PGI workstation on Debian Sarge on a Dual Opteron system either in 32- or 64-Bit mode (dual boot). Since version 6.0 compilation fails whenever we try to specify a target architecture with the "-tp" command line switch. Everything works perfeclty as long as we compile natively for the host machine, i.e. without "-tp". The error message is the following (example for "pgf90 -tp px" compilation):

pgf90-Error--tp px not supported in this installation

We have re-installed the PGI Worlstation package several times but the error is persistent. This happens with 6.0-5 as well as 6.0-8, but not with 5.2-4 on the exact same machine. We urgently need to resolve this problem as we also have Dual Athlon-MP nodes for which we need to be able to compile our programs whith "-tp athlonxp".
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mkcolg



Joined: 30 Jun 2004
Posts: 6211
Location: The Portland Group Inc.

PostPosted: Fri Nov 25, 2005 3:33 pm    Post subject: Reply with quote

Hi scheurer,

Does this happen on both the 32-bit and the 64-bit OS? If it's only the 64-bit, most likely the 32-bit compilers were not installed or the driver can't find them. When you use an architecture flag, "-tp", or the version flag "-V5.2", the driver automatically restarts using the correct driver. In other words, if your use a 32-bit architecture flag with the 64-bit driver, the driver will call the 32-bit driver. In order to do this, the 32-bit compilers and drivers must be installed and be located in $PGI/linux86/6.0/bin/pgcc (or pgf90, pgf77, pghpf, pgCC). Since Debian isn't supported, the installer may not be installing the 32-bit compilers since it can't find the necessary 32-bit compatibilty libraries.

Actually, this error can occur even with a 64-bit architecture flag if you've installed somewhere other than $PGI/linux86-64/REL#/bin since the driver will restart even if it's calling itself.

The good news is that you can work around this problem if the 32-bit compilers are installed. By default, even on an SSE2 enabled system the compilers do not generate SSE2 code. Only when the flags "-Mscalarsse" or "-fastsse" are used, does SSE2 code get generated. This means so long as you point your PATH to the 32-bit compiler directory and don't use "-Mscalarsse" or "-fastsse", you will generate code that can be run on an Athlon XP. Note that this will change in the upcoming 6.1 release where SSE2 instructions will be used by default on SSE2 enabled systems. However, the flag "-Mnoscalarsse" disables SSE2 code generation.

Hope this helps,
Mat
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scheurer



Joined: 27 Oct 2004
Posts: 4

PostPosted: Mon Nov 28, 2005 3:03 am    Post subject: Reply with quote

Hi mkcolg,

It also happens on the 32-bit OS and all compiler components are correctly installed in
$PGI/linux86/<version>/bin/pg* for 5.2 as well as 6.0. We usually use sym-links to map the pg* compilers into /usr/local/bin and up to version 5.2 this mapping worked without a problem.

I checked that everything works also with 6.0 if I explicitly call
$PGI/linux86/6.0/bin/pgf90 -V6.0 -tp athlonxp source.f
or
$PGI/linux86/6.0/bin/pgf90 -V5.2 -tp athlonxp source.f
but NOT if I go through the sym-link which maps
/usr/local/bin/pgf90 -> $PGI/linux86/6.0/bin/pgf90

If I use the sym-link and just call (with /usr/local/bin in my $PATH):
pgf90 -V6.0 -tp athlonxp source.f
I get the following error:
pgf90-Fatal-Could not find alternate compiler: /usr/6.0/bin/pgf90
which indicates that the frontend completely ignores the value of $PGI (since:
'echo $PGI' gives the correct answer /usr/local/share/pgi )

Is that an expected "feature"?

Regards,

Christoph
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mwolfe



Joined: 13 Jul 2004
Posts: 20

PostPosted: Mon Nov 28, 2005 5:46 pm    Post subject: Reply with quote

Christoph: Thanks for your post. I have tried to reproduce the behavior you are seeing, and I was unable to do so. I tried the following:
ln -s /usr/pgi/linux86-64/6.0/bin/pgf90 tempdir/pgf90
set path = ( tempdir/pgf90 $path )
rehash #I'm using tcsh
which pgf90 # make sure I'm getting the right pgf90
pgf90 a.f
pgf90 -V5.2 a.f
pgf90 -tp k8-32 a.f
pgf90 -tp k8-64 a.f

All of these worked for me, so I'm a bit at a loss. As you note, the driver does in fact ignore the value of $PGI when looking for the compiler; it finds the command from the path, and if it is a symbolic link, follows that link until it finds the install directory. For the -Vversion and -tp target switches, it uses relative directory paths from that install directory.
So, can you please do the following for me and send me the output:

ls -l /usr/local/bin/pg* # so I can see how the links are set up

pgf90 -dryrun a.f # shows the compile steps

pgf90 -dryrun -tp k8-32 a.f # shows what it's trying to do

cat $PGI/linux86-64/6.0/bin/localrc # shows the installed local 'rc' file
cat $PGI/linux86/6.0/bin/localrc # shows installed local 'rc' file for 32-bit

You can post these here, that might help me find the problem.

Thanks.
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scheurer



Joined: 27 Oct 2004
Posts: 4

PostPosted: Tue Nov 29, 2005 1:26 am    Post subject: Reply with quote

Hi mwolfe,

thanks for looking into the problem. Your test with a simple symbolic link also worked for me. Our situation is a little more complex. We install the PGI compilers to:
/usr/local/stow/PGI/share/pgi
and use 'stow' to manage the mapping into /usr/local, i.e. everything under
/usr/local/stow/PGI is mapped to the corresponding location under /usr/local
and we set PGI=/usr/local/share/pgi . Our full setup is therefore:

ls -l /usr/local/stow/PGI
lrwxrwxrwx 1 root root 25 Nov 24 15:05 bin -> share/pgi/linux86/6.0/bin
drwxr-xr-x 2 root root 4096 Nov 24 15:06 doc
drwxr-xr-x 2 root root 4096 Nov 24 15:06 include
lrwxrwxrwx 1 root root 25 Nov 24 15:05 lib -> share/pgi/linux86/6.0/lib
lrwxrwxrwx 1 root root 25 Nov 24 15:05 man -> share/pgi/linux86/6.0/man
drwxr-xr-x 5 root root 4096 Nov 24 15:08 share

ls -l /usr/local/stow/PGI/include
lrwxrwxrwx 1 root root 32 Nov 24 15:06 pgi -> ../share/pgi/linux86/6.0/include

That way the most recent binaries, libraries, etc. are mapped into the standard locations underneath /usr/local , e.g.

ls -l /usr/local/bin/pgf90
lrwxrwxrwx 1 root root 21 Nov 24 15:09 /usr/local/bin/pgf90 -> ../stow/PGI/bin/pgf90

Here is the additional information you requested:

ls -l /usr/local/bin/pg*
lrwxrwxrwx 1 root root 20 Nov 24 15:09 /usr/local/bin/pgCC -> ../stow/PGI/bin/pgCC
lrwxrwxrwx 1 root root 24 Nov 24 15:09 /usr/local/bin/pgappend -> ../stow/PGI/bin/pgappend
lrwxrwxrwx 1 root root 19 Nov 24 15:09 /usr/local/bin/pgc -> ../stow/PGI/bin/pgc
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pgc_ex -> ../stow/PGI/bin/pgc_ex
lrwxrwxrwx 1 root root 20 Nov 24 15:09 /usr/local/bin/pgcc -> ../stow/PGI/bin/pgcc
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pgcpp1 -> ../stow/PGI/bin/pgcpp1
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pgcpp2 -> ../stow/PGI/bin/pgcpp2
lrwxrwxrwx 1 root root 24 Nov 24 15:09 /usr/local/bin/pgcpp2ex -> ../stow/PGI/bin/pgcpp2ex
lrwxrwxrwx 1 root root 21 Nov 24 15:09 /usr/local/bin/pgdbg -> ../stow/PGI/bin/pgdbg
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pgdbg1 -> ../stow/PGI/bin/pgdbg1
lrwxrwxrwx 1 root root 23 Nov 24 15:09 /usr/local/bin/pgdebug -> ../stow/PGI/bin/pgdebug
lrwxrwxrwx 1 root root 24 Nov 24 15:09 /usr/local/bin/pgdecode -> ../stow/PGI/bin/pgdecode
lrwxrwxrwx 1 root root 25 Nov 24 15:09 /usr/local/bin/pgextract -> ../stow/PGI/bin/pgextract
lrwxrwxrwx 1 root root 21 Nov 24 15:09 /usr/local/bin/pgf77 -> ../stow/PGI/bin/pgf77
lrwxrwxrwx 1 root root 23 Nov 24 15:09 /usr/local/bin/pgf77rc -> ../stow/PGI/bin/pgf77rc
lrwxrwxrwx 1 root root 21 Nov 24 15:09 /usr/local/bin/pgf90 -> ../stow/PGI/bin/pgf90
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pgf901 -> ../stow/PGI/bin/pgf901
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pgf902 -> ../stow/PGI/bin/pgf902
lrwxrwxrwx 1 root root 24 Nov 24 15:09 /usr/local/bin/pgf90_ex -> ../stow/PGI/bin/pgf90_ex
lrwxrwxrwx 1 root root 23 Nov 24 15:09 /usr/local/bin/pgf90rc -> ../stow/PGI/bin/pgf90rc
lrwxrwxrwx 1 root root 21 Nov 24 15:09 /usr/local/bin/pgf95 -> ../stow/PGI/bin/pgf95
lrwxrwxrwx 1 root root 21 Nov 24 15:09 /usr/local/bin/pgftn -> ../stow/PGI/bin/pgftn
lrwxrwxrwx 1 root root 24 Nov 24 15:09 /usr/local/bin/pgftn_ex -> ../stow/PGI/bin/pgftn_ex
lrwxrwxrwx 1 root root 23 Nov 24 15:09 /usr/local/bin/pgftnrc -> ../stow/PGI/bin/pgftnrc
lrwxrwxrwx 1 root root 24 Nov 24 15:09 /usr/local/bin/pghostid -> ../stow/PGI/bin/pghostid
lrwxrwxrwx 1 root root 21 Nov 24 15:09 /usr/local/bin/pghpf -> ../stow/PGI/bin/pghpf
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pghpf1 -> ../stow/PGI/bin/pghpf1
lrwxrwxrwx 1 root root 25 Nov 24 15:09 /usr/local/bin/pghpf1_ex -> ../stow/PGI/bin/pghpf1_ex
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pghpf2 -> ../stow/PGI/bin/pghpf2
lrwxrwxrwx 1 root root 23 Nov 24 15:09 /usr/local/bin/pghpfrc -> ../stow/PGI/bin/pghpfrc
lrwxrwxrwx 1 root root 21 Nov 24 15:09 /usr/local/bin/pgipa -> ../stow/PGI/bin/pgipa
lrwxrwxrwx 1 root root 25 Nov 24 15:09 /usr/local/bin/pglicinfo -> ../stow/PGI/bin/pglicinfo
lrwxrwxrwx 1 root root 24 Nov 24 15:09 /usr/local/bin/pgprepro -> ../stow/PGI/bin/pgprepro
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pgprof -> ../stow/PGI/bin/pgprof
lrwxrwxrwx 1 root root 23 Nov 24 15:09 /usr/local/bin/pgroupd -> ../stow/PGI/bin/pgroupd
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pgserv -> ../stow/PGI/bin/pgserv
lrwxrwxrwx 1 root root 22 Nov 24 15:09 /usr/local/bin/pgsize -> ../stow/PGI/bin/pgsize
lrwxrwxrwx 1 root root 23 Nov 24 15:09 /usr/local/bin/pgsmart -> ../stow/PGI/bin/pgsmart

pgf90 -dryrun a.f
Reading rcfile /usr/local/bin/.pgf90rc
Reading rcfile /usr/local/bin/nativerc
Reading rcfile /usr/local/bin/fnativerc
Reading rcfile /usr/local/bin/x86rc
Reading rcfile /usr/local/bin/x8664rc
Reading rcfile /usr/local/bin/lin86rc
Reading rcfile /usr/local/bin/lin8664rc
Reading rcfile /usr/local/bin/iparc
Reading rcfile /usr/local/bin/pgf90rc
Reading rcfile /usr/local/bin/pgftnrc
Reading rcfile /usr/local/bin/localrc
Skipping siterc (not found)
Skipping .mypgf90rc (not found)

/usr/local/bin/pgf901 a.f -opt 1 -terse 1 -inform warn -nohpf -nostatic -x 19 0400000 -quad -x 59 4 -x 15 2 -x 49 0x400004 -x 51 0x20 -x 57 0x4c -x 58 0x10000-x 124 0x1000 -x 57 0xfb0000 -x 58 0x78031040 -x 48 4608 -x 49 0x100 -x 120 0x20 -stdinc /usr/local/include:/usr/local/include:/usr/lib/gcc-lib/x86_64-linux/33.5/include:/usr/lib/gcc-lib/x86_64-linux/3.3.5/include:/usr/include -def unix def __unix -def __unix__ -def linux -def __linux -def __linux__ -def __inline__ -def __NO_INLINE__ -def __NO_MATH_INLINES -def __x86_64__ -def __LONG_MAX__=923372036854775807L -def '__SIZE_TYPE__=unsigned long int' -def '__PTRDIFF_TYPE__long int' -def __THROW= -def __amd64__ -nofreeform -vect 48 -output /scratch/sceurer/pgf90aaaaaFoiaj.ilm

/usr/local/bin/pgf902 /scratch/scheurer/pgf90aaaaaFoiaj.ilm -fn a.f -opt 1 -tere 1 -inform warn -x 51 0x20 -x 119 0xa10000 -x 122 0x40 -x 123 0x1000 -x 127 4 x 19 0x400000 -quad -x 120 0x80000000 -x 59 4 -y 80 0x1000 -x 80 0x10800000 -x 24 0x1400 -y 15 2 -y 80 0x1000 -x 80 0x10800000 -x 57 0x3b0000 -x 58 0x48000000-x 49 0x100 -x 120 0x200 -astype 0 -x 124 1 -asm /scratch/scheurer/pgf90baaaaFoaj.s

/usr/bin/as /scratch/scheurer/pgf90baaaaFoiaj.s -o /scratch/scheurer/pgf90caaaaoiaj.o

/usr/bin/ld /usr/lib64/crt1.o /usr/lib64/crti.o /usr/lib/gcc-lib/x86_64-linux/33.5/crtbegin.o /usr/local/lib/f90main.o -m elf_x86_64 -dynamic-linker /lib64/ldlinux-x86-64.so.2 /scratch/scheurer/pgf90caaaaFoiaj.o -L/usr/local/lib -L/usr/lb64 -L/usr/lib/gcc-lib/x86_64-linux/3.3.5 -rpath /usr/local/lib -lpgf90 -lpgf90rpm1 -lpgf902 -lpgf90rtl -lpgftnrtl -lc -lnspgc -lpgc -lm -lgcc -lc -lgcc /usr/ib/gcc-lib/x86_64-linux/3.3.5/crtend.o /usr/lib64/crtn.o
Unlinking /scratch/scheurer/pgf90aaaaaFoiaj.ilm
Unlinking /scratch/scheurer/pgf90aaaaaFoiaj.dbg
Unlinking /scratch/scheurer/pgf90baaaaFoiaj.s
Unlinking /scratch/scheurer/pgf90caaaaFoiaj.o

pgf90 -dryrun -tp k8-32 a.f
Reading rcfile /usr/local/bin/.pgf90rc
Reading rcfile /usr/local/bin/nativerc
Reading rcfile /usr/local/bin/fnativerc
Reading rcfile /usr/local/bin/x86rc
Reading rcfile /usr/local/bin/x8664rc
Reading rcfile /usr/local/bin/lin86rc
Reading rcfile /usr/local/bin/lin8664rc
Reading rcfile /usr/local/bin/iparc
Reading rcfile /usr/local/bin/pgf90rc
Reading rcfile /usr/local/bin/pgftnrc
Reading rcfile /usr/local/bin/localrc
Skipping siterc (not found)
Skipping .mypgf90rc (not found)
pgf90-Error--tp k8-32 not supported in this installation

cat $PGI/linux86-64/6.0/bin/localrc
set LFC=-lg2c;
set LDSO=/lib64/ld-linux-x86-64.so.2;
set GCCDIR=/usr/lib/gcc-lib/x86_64-linux/3.3.5;
set GCCINC=/usr/lib/gcc-lib/x86_64-linux/3.3.5/include;
set G77DIR=/usr/lib/gcc-lib/x86_64-linux/3.3.5;
set THROW=__THROW=;
# makelocalrc executed by root Fri Oct 14 19:55:11

cat $PGI/linux86/6.0/bin/localrc
set LFC=-lg2c;
set LDSO=/lib/ld-linux.so.2;
set GCCDIR=/usr/lib/gcc-lib/x86_64-linux/3.3.5/32;
set GCCINC=/usr/lib/gcc-lib/x86_64-linux/3.3.5/include;
set G77DIR=/usr/lib/gcc-lib/x86_64-linux/3.3.5/32;
set THROW=__THROW=;
set DEFLIBDIR=/usr/lib;
set DEFSTDOBJDIR=/usr/lib;
set EXTRAASARGS=--32;
# makelocalrc executed by root Fri Oct 14 19:55:11

For comparison, this is the output if I specify the path explicitly:

$PGI/linux86-64/6.0/bin/pgf90 -dryrun -tp k8-32 a.f
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/.pgf90rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/nativerc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/fnativerc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/x86rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/x8664rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/lin86rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/lin8664rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/iparc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/pgf90rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/pgftnrc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86-64/6.0/bin/localrc
Skipping siterc (not found)
Skipping .mypgf90rc (not found)
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/.pgf90rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/nativerc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/fnativerc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/x86rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/x8632rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/lin86rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/lin8632rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/iparc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/pgf90rc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/pgftnrc
Reading rcfile /usr/local/stow/PGI/share/pgi/linux86/6.0/bin/localrc
Skipping siterc (not found)
Skipping .mypgf90rc (not found)

/usr/local/stow/PGI/share/pgi/linux86/6.0/bin/pgf901 a.f -opt 1 -terse 1 -inform warn -nohpf -nostatic -x 119 0x100000 -x 19 0x400000 -x 59 4 -x 15 2 -x 49 0x400004 -x 51 0x20 -x 57 0x4c -x 58 0x10000 -x 124 0x1000 -x 57 0xfb0000 -x 58 0x78031040 -x 48 3328 -stdinc /usr/local/stow/PGI/share/pgi/linux86/6.0/include:/usr/local/include:/usr/lib/gcc-lib/x86_64-linux/3.3.5/include:/usr/lib/gcc-lib/x86_64-linux/3.3.5/32/include:/usr/include -def unix -def __unix -def __unix__ -def linux -def __linux -def __linux__ -def __inline__= -def i386 -def __i386 -def __i386__ -def __NO_MATH_INLINES -def linux86 -def __THROW= -nofreeform -vect 48 -output /scratch/scheurer/pgf90aaaaanpiaA.ilm

/usr/local/stow/PGI/share/pgi/linux86/6.0/bin/pgf902 /scratch/scheurer/pgf90aaaaanpiaA.ilm -fn a.f -opt 1 -terse 1 -inform warn -x 51 0x20 -x 119 0xa10000 -x 119 0x100000 -x 122 0x40 -x 123 0x1000 -x 127 4 -x 119 0x40000000 -x 19 0x400000 -x 59 4 -x 124 0x1400 -y 15 2 -x 57 0x3b0000 -x 58 0x48000000 -astype 0 -x 124 1 -x 80 0x08000000 -y 80 0x1000 -asm /scratch/scheurer/pgf90baaaanpiaA.s

/usr/bin/as /scratch/scheurer/pgf90baaaanpiaA.s --32 -o /scratch/scheurer/pgf90caaaanpiaA.o

/usr/bin/ld /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/gcc-lib/x86_64-linux/3.3.5/32/crtbegin.o /usr/local/stow/PGI/share/pgi/linux86/6.0/lib/f90main.o -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 /scratch/scheurer/pgf90caaaanpiaA.o -L/usr/local/stow/PGI/share/pgi/linux86/6.0/lib -L/usr/lib -L/usr/lib/gcc-lib/x86_64-linux/3.3.5/32 -rpath /usr/local/stow/PGI/share/pgi/linux86/6.0/lib -lpgf90 -lpgf90_rpm1 -lpgf902 -lpgf90rtl -lpgftnrtl -lpgsse1 -lpgsse2 -lc -lnspgc -lpgc -lm -lgcc -lc -lgcc /usr/lib/gcc-lib/x86_64-linux/3.3.5/32/crtend.o /usr/lib/crtn.o
Unlinking /scratch/scheurer/pgf90aaaaanpiaA.ilm
Unlinking /scratch/scheurer/pgf90aaaaanpiaA.dbg
Unlinking /scratch/scheurer/pgf90baaaanpiaA.s
Unlinking /scratch/scheurer/pgf90caaaanpiaA.o

To be honest, I think it is flawed logic not to look into the installation directory pointed to by the environment variable $PGI to find the installation directory but instead to rely on completely and recursively walking along all possible sym-links to find it. If I set the environment variable, then that is for a good reason and should be more reliable. At least as a last resort the frontend should search there instead of just giving up.

As a workaround (since I can't look at the inner logic of the compiler), would it be sufficient to remove all but the pgf90, pgf77, pgCC, and pgcc frontends from /usr/local/bin to have the frontend "realize" that /usr/local/bin is NOT the installation directory. Since to me it seems that this is what causes the problem.

Regards,

Christoph
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