PGI Compiler

Environment Settings

Software Version and System Requirements

+ : Available for use
― : Not available for use

Compiler Settings

Note that the default compiler of System A is set to Cray and the default compiler of System B and C is set to Intel. Therefore, you need to switch from the default compiler to PGI Compiler by executing the module command as below. The default version of PGI Compiler shown in the above list will be set.

When switching from Cray to PGI Compiler (System A):
$ module switch PrgEnv-cray PrgEnv-pgi
When switching from Intel to PGI Compiler (System B or C):
$ module switch PrgEnv-intel PrgEnv-pgi

When switching between the versions of PGI Compilers, execute the module command with PrgEnv-pgi loaded as below:

$ module switch pgi/12.8 pgi/12.3

To automatically execute a command when logging in to the System, specify such command in the login shell startup-file by following Setting Up System.
For details on the module command, see Modules.

How to Compile

Compile Commands

• System A

  Language	Command	Operands
  Fortran	ftn	ftn [sequence_of_options] sequence_of_files
  C	cc	cc [sequence_of_options] sequence_of_files
  C++	CC	CC [sequence_of_options] sequence_of_files

• System B and C

  Language	Command	Operands
  Fortran	pgf95	pgf95 [sequence_of_options] sequence_of_files
  C	pgcc	pgcc [sequence_of_options] sequence_of_files
  C++	pgc++	pgc++ [sequence_of_options] sequence_of_files

Compile Options

• Main options (e.g., parallelization, optimization)

  Option	Purpose
  -o FILENAME	Specifies the name of the object file.
  -mcmodel=medium -dynamic	Compiles codes using more than 2GB of static memory in the System A and D.
  -mcmodel=medium	Compiles codes using more than 2GB of static memory in the System B and C.
  -mp	Enables compiler recognition of OpenMP directives.
  -Mconcur -dynamic	Enables autothreading.
  -O0/-O1/-O2/-O3/-O4	Specifies general optimization at four levels. (The default is 2.)
  -fast	Chooses generally optimal flags for the target platform.
  -Mipa=fast	Enables interprocedural optimization.

• Massage and debugging options

  Option	Purpose
  -Mlist	Generates a report.
  -Minform,inform	Displays all warning messages.
  -Minfo	Displays optimization messages.
  -Mneginfo	Displays messages to explain why optimizations did not occur in a given instance.

• Fortran language options

  Option	Purpose
  -Mfixed	Specifies that Fortran source programs are written in fixed source form.
  -Mfree	Specifies that Fortran source programs are written in free source form.
  -Mstandard	Generates messages when nonstandard usage of Fortran is encountered.
  -Mdclchk	Warns of the IMPLICIT type statement.
  -Mbyteswapio	Supports the big-endian file.
  -C	Performs bounds checking.

Examples of Compiling

Non-parallelized Program (System A)

$ ftn test.f90    # For Fortran

$ cc test.c       # For C

$ CC test.cpp     # For C++

$ tssrun ./a.out    # Execution

Non-parallelized Program(System B and C)

$ pgf95 test.f90    # For Fortran

$ pgcc test.c       # For C

$ pgc++ test.cpp     # For C++

$ tssrun ./a.out    # Execution

Using Auto-Parallelization

$ pgf95 -Mconcur test.f90

$ tssrun -A p=1:t=4:c=4 ./a.out # The number of parallels = 4

Using OpenMP

$ pgcc -mp test.c

$ tssrun -A p=1:t=8:c=8 ./a.out # The number of parallels = 8

Available Libraries

MPI Library

• Cray MPI library is available in the System A. How to compile, link, and run MPI programs, see Cray MPI Library.
• OpenMPI library is available in the System B and C. How to compile, link, and run MPI programs, see OpenMPI Library.

Manuals

Ver.14

• PGI Fortran Reference
• PGI Compiler Reference Manual
• PGI Compiler Users Guide
• PGDBG Debugger Guide
• PGPROF Profiler Guide

Ver.17

• PGI Compiler Reference Manual
• PGI Compiler Users Guide

Links

• PGI Documentation