2.15 Environment Variables

This section lists the environment variables that enable you to control the compilation and runtime environment. See also the Oracle Solaris Studio OpenMP API User's Guide for descriptions of environment variables related to OpenMP parallelization.

2.15.1 PARALLEL

Specifies the number of processors available to the program for multiprocessor execution. If the target machine has multiple processors, the threads can map to independent processors. Running the program leads to the creation of two threads that execute the parallelized portions of the program.

2.15.2 SUN_PROFDATA

Controls the name of the file in which the -xprofile=collect command stores execution-frequency data.

2.15.3 SUN_PROFDATA_DIR

Controls in which directory the -xprofile=collect command places the execution-frequency data file.

2.15.4 TMPDIR

cc normally creates temporary files in the directory /tmp. You can specify another directory by setting the environment variable TMPDIR to the directory of your choice. However, if TMPDIR is not a valid directory, cc uses /tmp. The -xtemp option has precedence over the TMPDIR environment variable.

Bourne shell:

$ TMPDIR=dir; export TMPDIR

C shell:

% setenv TMPDIR dir