Giles is correct. If mpicc is showing errors like those in your original email
then it is not invoking a C compiler. C does not have any concept of try or
catch. No modern C compiler will complain about a variable named “try” as it is
not a reserved keyword in the C language.
Example:
foo.c:
int try = 0;
gcc --std=c11 -c foo.c
No error
g++ -c foo.c
foo.c:3:5: error: expected unqualified-id
int try = 0;
^
1 error generated.
-Nathan
> On Apr 3, 2019, at 6:09 PM, Gilles Gouaillardet <gil...@rist.or.jp> wrote:
>
> Do not get fooled by the symlinks to opal_wrapper !
>
> opal_wrapper checks how it is invoked (e.g. check argv[0] in main()) and the
> behavior is different
>
> if it is invoked as mpicc, mpiCC, mpifort and other
>
>
> If the error persists with mpicc, you can manually extract the mpicc command
> line, and manually run it with the -showme parameter,
>
> it will show you the full command line (and who knows, mpicc might invoke a
> C++ compiler after all, and that would be a config issue)
>
>
> Cheers,
>
>
> Gilles
>
> On 4/4/2019 7:48 AM, afernan...@odyhpc.com wrote:
>>
>> Sam and Jeff,
>>
>> Thank you for your answers. My first attempts actually used mpicc rather
>> than mpiCC, switching to mpiCC was simply to check out if the problem
>> persisted. I noticed that both mpicc and mpiCC are linked to the same file
>> (opal_wrapper) and didn't bother switching it back. I'm not sure if the
>> wrapper figures out what compiler you call because I was getting the same
>> error message. Jeff is right pointing out that 'try' is reserved but the
>> original file seems to be really old (think 1970). Apparently, the new
>> compiler (shipped with OMPIv4) is more sensitive and beeps when the older
>> didn't.
>>
>> Thanks again,
>>
>> AFernandez
>>
>> Indeed, you cannot use "try" as a variable name in C++ because it is a
>> https://en.cppreference.com/w/cpp/keyword.
>>
>> As already suggested, use a C compiler, or you can replace "try" with "xtry"
>> or any other non-reserved word.
>>
>> Jeff
>>
>> On Wed, Apr 3, 2019 at 1:41 PM Gutierrez, Samuel K. via users
>> <users@lists.open-mpi.org <mailto:users@lists.open-mpi.org>> wrote:
>>
>> Hi,
>>
>> It looks like you are using the C++ wrapper compiler (mpiCC)
>> instead of the C wrapper compiler (mpicc). Perhaps using mpicc
>> instead of mpiCC will resolve your issue.
>>
>> Best,
>>
>> Sam
>>
>>
>>
>> On Apr 3, 2019, at 12:38 PM, afernan...@odyhpc.com
>> <mailto:afernan...@odyhpc.com> wrote:
>>
>> Hello,
>>
>> I'm trying to compile HPL(v2.3) with OpenBLAS and OMPI. The
>> compilation succeeds when using the old OMPI (v1.10.8) but
>> fails with OMPI v4.0.0 (I'm still not using v4.0.1). The error
>> is for an old subroutine that determines machine-specific
>> arithmetic constants:
>>
>> mpiCC -o HPL_dlamch.o -c
>> -I/home/centos/benchmarks/hpl-2.2/include
>> -I/home/centos/benchmarks/hpl-2.2/include/impetus03
>> -I/opt/openmpi/include ../HPL_dlamch.c
>>
>> ../HPL_dlamch.c: In function ‘void HPL_dlamc5(int, int, int,
>> int, int*, double*)’:
>>
>> ../HPL_dlamch.c:749:67: error: expected unqualified-id before
>> ‘try’
>>
>> int exbits=1, expsum, i, lexp=1, nbits,
>> try,
>>
>> ^
>>
>> ../HPL_dlamch.c:761:8: error: expected ‘{’ before ‘=’ token
>>
>> try = (int)( (unsigned int)(lexp) << 1 );
>>
>> ^
>>
>> ../HPL_dlamch.c:761:8: error: expected ‘catch’ before ‘=’ token
>>
>> ../HPL_dlamch.c:761:8: error: expected ‘(’ before ‘=’ token
>>
>> ../HPL_dlamch.c:761:8: error: expected type-specifier before
>> ‘=’ token
>>
>> ../HPL_dlamch.c:761:8: error: expected ‘)’ before ‘=’ token
>>
>> ../HPL_dlamch.c:761:8: error: expected ‘{’ before ‘=’ token
>>
>> ../HPL_dlamch.c:761:8: error: expected primary-expression
>> before ‘=’ token
>>
>> ../HPL_dlamch.c:762:8: error: expected primary-expression
>> before ‘try’
>>
>> if( try <= ( -EMIN ) ) { lexp = try; exbits++; goto l_10; }
>>
>> ^
>>
>> ../HPL_dlamch.c:762:8: error: expected ‘)’ before ‘try’
>>
>> ../HPL_dlamch.c:762:36: error: expected primary-expression
>> before ‘try’
>>
>> if( try <= ( -EMIN ) ) { lexp = try; exbits++; goto l_10; }
>>
>> ^
>>
>> ../HPL_dlamch.c:762:36: error: expected ‘;’ before ‘try’
>>
>> ../HPL_dlamch.c:764:26: error: ‘uexp’ was not declared in this
>> scope
>>
>> if( lexp == -EMIN ) { uexp = lexp; } else { uexp = try;
>> exbits++; }
>>
>> ^
>>
>> ../HPL_dlamch.c:764:48: error: ‘uexp’ was not declared in this
>> scope
>>
>> if( lexp == -EMIN ) { uexp = lexp; } else { uexp = try;
>> exbits++; }
>>
>> ^
>>
>> ../HPL_dlamch.c:764:55: error: expected primary-expression
>> before ‘try’
>>
>> if( lexp == -EMIN ) { uexp = lexp; } else { uexp = try;
>> exbits++; }
>>
>> ^
>>
>> ../HPL_dlamch.c:764:55: error: expected ‘;’ before ‘try’
>>
>> ../HPL_dlamch.c:770:10: error: ‘uexp’ was not declared in this
>> scope
>>
>> if( ( uexp+EMIN ) > ( -lexp-EMIN ) )
>>
>> ^
>>
>> make[2]: *** [HPL_dlamch.o] Error 1
>>
>> make[2]: Leaving directory
>> `/home/centos/hpl-2.3/src/auxil/impetus03'
>>
>> make[1]: *** [build_src] Error 2
>>
>> make[1]: Leaving directory `/home/centos/hpl-2.3'
>>
>> make: *** [build] Error 2
>>
>> I don't understand the nature of the problem or why it works
>> with the old OMPI version and not with the new. Any help or
>> pointer would be appreciated.
>>
>> Thanks.
>>
>> AFernandez
>>
>> _______________________________________________
>> users mailing list
>> users@lists.open-mpi.org <mailto:users@lists.open-mpi.org>
>> https://lists.open-mpi.org/mailman/listinfo/users
>>
>> _______________________________________________
>> users mailing list
>> users@lists.open-mpi.org <mailto:users@lists.open-mpi.org>
>> https://lists.open-mpi.org/mailman/listinfo/users
>>
>>
>> --
>>
>> Jeff Hammond
>> jeff.scie...@gmail.com <mailto:jeff.scie...@gmail.com>
>> http://jeffhammond.github.io/
>>
>>
>> _______________________________________________
>> users mailing list
>> users@lists.open-mpi.org
>> https://lists.open-mpi.org/mailman/listinfo/users
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