C/C++¶

GNU compilers¶

GNU developped C/C++ compilers delivered with the Linux system.

• gcc (via gcc or cc) is the GNU compiler for C.
• g++ (via g++ or c++) is the GNU compiler available with Linux systems.

The version of the compilers is available via:

% gcc -v
% cc -v
% g++ -v

Please follow the software loader syntax to list and activate the required compiler version.

To see the compiler options use:

% man gcc
% man g++

PGI compilers¶

CC-IN2P3 has some number of licences (via FlexLM) for the C/C++ compilers supplied by PGI (Portland group). In order to compile your program, follow the software loader syntax to list and activate the required compiler version.

Please find here the offcial PGI documentation.

• pgcc is the PGI compiler for C
• pgc++ is the PGI compiler for C++
• pgdbg is the debuggers
• pgprof is the profiler

To see the pgcc and pgc++ compiler options use:

% man pgcc
% man pgc++

Compiling syntax example:

% pgcc -O -c test.c

For linking your program with the (CERNLIB), you should add the library libg2c.a which is a part of g77 compiler. The same remark is valid for other libraries compiled with g77 (like the NAG library).

% set g2c = '-lg2c'
% pgcc -O -o test test.c `cernlib` -lpthread -lm ${g2c}
% ./test

Intel compilers¶

CC-IN2P3 has some number of licences (via FlexLM) for the compilers supplied by INTEL.

This software contains the C/C++ and Fortran compilers with the interactive debug idb and with the libraries:

• MKL (Math Kernel Library)
• IPP (Integrated Performance Primitives)
• Threading Building Blocks for Linux

In order to compile your program, follow the software loader syntax to list and activate the required compiler version. To see the compiler options use:

% man icc

Compiling syntax example:

% icc -O -c test.c

For linking your program with the (CERNLIB), you should add the library libg2c.a which is a part of g77 compiler. The same remark holds for other libraries compiled with g77 (like the NAG library).

% set g2c = '-lg2c'
% icc -O -o test test.c `cernlib` -lpthread -lm ${g2c}
% ./test

Please find here the offical Intel C++ documentation.

NAG Libraries¶

Please follow the software loader syntax to list and activate the required compiler version.

For a complete documentation, please refer to proprietary site.