Last modified: Sep 16, 2009 by Bouvet

SOFT: C and C++ programming at CC

1. C compilers

The users at CC may use the different C compilers.

1.1. gcc compiler (GNU)

The is the default C compiler for Linux, developped by GNU. the command for compiling is gcc (or cc). To know the version of the compiler type:

> gcc -v
> cc -v

The doc is available using the command:

> man gcc

1.2. pgcc compiler (Portland Group)

The CC has some number of floating licenses (via FlexLM) for the C compiler supplied by the PGI (Portland Group). In order to compile your code with this compiler you should initialise the variables by the command pgi_env (pgi_env32 in 32-bit compatibility mode). To know the compiler options:

> pgi_env
> man pgcc

The complete doc is available, cliquez here.

Example:

> pgi_env
> pgcc -O -c test.

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).

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

1.3. icc compiler (INTEL)

The CC has some number of floating licenses (via FlexLM) for the C compiler supplied by INTEL. In order to compile one should initialise the variables using the command icc_env. To know the compiler options, type:

> icc_env
> man icc

The doc is available, cliquez here.

Example:

> icc_env
> 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 is valid for other libraries compiled with g77 (like the NAG library).

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

You can use the debugger and the profiler with the names: pgdbg and pgprof.

2. C++ compilers

The users at CC may use the different C++ compilers.

2.1. g++ compile (GNU)

The is the default C++ compiler for Linux, developped by GNU. the command for compiling is g++ (or c++). To know the version of the compiler type:

> g++ -v
> c++ -v

The doc is available via the command:

> man g++

2.2. pgCC compiler (Portland Group)

The CC has some number of floating licenses (via FlexLM) for the C++ compiler supplied by the PGI (Portland Group). In order to compile your code with this compiler you should initialise the variables by the command pgi_env. To know the compiler options:

> pgi_env
> man pgCC

The doc is available, cliquez here.

2.3. icc compiler (INTEL)

The CC has some number of floating licenses (via FlexLM) for the C++ compiler supplied by INTEL. In order to compile one should initialise the variables using the command icc_env. To know the compiler options, type:

> icc_env
> man icc

The doc is available, cliquez here.