Charm++ parallel programming system

[Jeff Hammond <jeff.science AT gmail.com>]

On Fri, Dec 2, 2016 at 12:51 AM, Jozsef Bakosi <jbakosi AT gmail.com> wrote:

Ok, thanks guys. I will shelve a Cray-compiler port then. I have other issues with it anyway. For example, the following, which compiles fine with gcc, is not yet supported by the Cray C++ compiler either:

No, the Cray compiler is just fine.  You just didn't tell it to support C++11.  GCC defaults to that, which is why it works.

See below where Cray and GCC behave the same way when using explicit language support flags for C++03 and C++11.

 

$ CC -V

Cray C++ : Version 8.5.4  Thu Dec 01, 2016  08:46:59

hello.C:

-------------

#include <map>

void fn( std::map< int, int >&& m ) {}

int main() { fn( { {1,2}, {2,1} } ); }

-------------

cori02:~$ CC -c hello.C 

CC-18 crayc++: ERROR File = hello.C, Line = 3

  A right parenthesis ")" is expected.

  void fn( std::map< int, int >&& m ) {}

                               ^

CC-289 crayc++: ERROR File = hello.C, Line = 5

  No instance of constructor "std::map<_Key, _Tp, _Compare, _Alloc>::map [with

          _Key=int, _Tp=int, _Compare=std::less<int>,

          _Alloc=std::allocator<std::pair<const int, int>>]" matches the

          argument list.

            The argument types are:  ({...}, {...}).

  int main() { fn( { {1,2}, {2,1} } ); }

                   ^

Total errors detected in hello.C: 2

(module swap PrgEnv-intel PrgEnv-cray)

jhammond@edison02:~> CC -h std=c++03 map.cc
CC-18 crayc++: ERROR File = map.cc, Line = 2
  A right parenthesis ")" is expected.
  void fn( std::map< int, int >&& m ) {}
                               ^

CC-289 crayc++: ERROR File = map.cc, Line = 3
  No instance of constructor "std::map<_Key, _Tp, _Compare, _Alloc>::map [with
          _Key=int, _Tp=int, _Compare=std::less<int>,
          _Alloc=std::allocator<std::pair<const int, int>>]" matches the
          argument list.
            The argument types are:  ({...}, {...}).
  int main() { fn( { {1,2}, {2,1} } ); return 0;}
                   ^

Total errors detected in map.cc: 2

jhammond@edison02:~> CC -h std=c++11 map.cc
CC-12489 crayc++: WARNING File = /opt/gcc/4.8.1/snos/include/g++/type_traits, Line = 62
  constexpr non-static member function will not be implicitly 'const' in C++14
        constexpr operator value_type() { return value; }
        ^

Cray C++ : Version 8.5.1 (20160621140302_6d8c847f9f2d39b12d44ed5cf23e60ef45080ba9)
Total warnings detected in map.cc: 1

(module swap PrgEnv-cray PrgEnv-gnu)

jhammond@edison02:~> CC -std=c++03 map.cc
map.cc:2:30: error: expected ',' or '...' before '&&' token
 void fn( std::map< int, int >&& m ) {}
                              ^~
map.cc: In function 'int main()':
map.cc:3:18: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
 int main() { fn( { {1,2}, {2,1} } ); return 0;}
                  ^
map.cc:3:35: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
 int main() { fn( { {1,2}, {2,1} } ); return 0;}
                                   ^
map.cc:3:35: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
map.cc:3:35: error: could not convert '{{1, 2}, {2, 1}}' from '<brace-enclosed initializer list>' to 'std::map<int, int>'
 

jhammond@edison02:~> CC -std=c++11 map.cc

(no error)

--

Jeff Hammond
jeff.science AT gmail.com
http://jeffhammond.github.io/