Compilation Environment Variables
I_MPI_{CC,CXX,FC,F77,F90}_PROFILE
Specify the default profiling library.
Syntax
I_MPI_CC_PROFILE=<profile-name>
I_MPI_CXX_PROFILE=<profile-name>
I_MPI_FC_PROFILE=<profile-name>
I_MPI_F77_PROFILE=<profile-name>
I_MPI_F90_PROFILE=<profile-name>
Argument
| <profile-name> | Specify a default profiling library. |
Description
Set this environment variable to select a specific MPI profiling library to be used by default. This has the same effect as using -profile=<profile-name> as an argument for mpiicc or another Intel® MPI Library compiler wrapper.
I_MPI_TRACE_PROFILE
Specify the default profile for the -trace option.
Syntax
I_MPI_TRACE_PROFILE=<profile-name>
Argument
| <profile-name> | Specify a tracing profile name. The default value is vt. |
Description
Set this environment variable to select a specific MPI profiling library to be used with the -trace option of mpiicc or another Intel MPI Library compiler wrapper.
The I_MPI_{CC,CXX,F77,F90}_PROFILE environment variable overrides I_MPI_TRACE_PROFILE.
I_MPI_CHECK_PROFILE
Specify the default profile for the -check_mpi option.
Syntax
I_MPI_CHECK_PROFILE=<profile-name>
Argument
| <profile-name> | Specify the checking profile name. The default value is vtmc. |
Description
Set this environment variable to select a specific MPI checking library to be used with the -check_mpi option to mpiicc or another Intel MPI Library compiler wrapper.
The I_MPI_{CC,CXX,F77,F90}_PROFILE environment variable overrides I_MPI_CHECK_PROFILE.
I_MPI_CHECK_COMPILER
Turn on/off compiler compatibility check.
Syntax
I_MPI_CHECK_COMPILER=<arg>
Arguments
| <arg> | Binary indicator. |
| enable | yes | on | 1 | Enable checking the compiler. |
| disable | no | off | 0 | Disable checking the compiler. This is the default value. |
Description
If I_MPI_CHECK_COMPILER is set to enable, the Intel MPI Library compiler wrapper checks the underlying compiler for compatibility. Normal compilation requires using a known version of the underlying compiler.
I_MPI_{CC,CXX,FC,F77,F90}
Set the path/name of the underlying compiler to be used.
Syntax
I_MPI_CC=<compiler>
I_MPI_CXX=<compiler>
I_MPI_FC=<compiler>
I_MPI_F77=<compiler>
I_MPI_F90=<compiler>
Arguments
| <compiler> | Specify the full path/name of compiler to be used. |
Description
Set this environment variable to select a specific compiler to be used. Specify the full path to the compiler if it is not located in the search path.
NOTE:
Some compilers may require additional command line options.
NOTE:
The configuration file is sourced if it exists for a specified compiler. See -configfor details.
I_MPI_ROOT
Set the Intel MPI Library installation directory path.
Syntax
I_MPI_ROOT=<path>
Arguments
| <path> | Specify the installation directory of the Intel MPI Library. |
Description
Set this environment variable to specify the installation directory of the Intel MPI Library.
NOTE:
If you are using the Visual Studio integration, you may need to use I_MPI_ONEAPI_ROOT.
VT_ROOT
Set Intel® Trace Collector installation directory path.
Syntax
VT_ROOT=<path>
Arguments
| <path> | Specify the installation directory of the Intel Trace Collector. |
Description
Set this environment variable to specify the installation directory of the Intel Trace Collector.
I_MPI_COMPILER_CONFIG_DIR
Set the location of the compiler configuration files.
Syntax
I_MPI_COMPILER_CONFIG_DIR=<path>
Arguments
| <path> | Specify the location of the compiler configuration files. The default value is <install-dir>/etc |
Description
Set this environment variable to change the default location of the compiler configuration files.
I_MPI_LINK
Select a specific version of the Intel MPI Library for linking.
Syntax
I_MPI_LINK=<arg>
Arguments
| Argument | Library Version |
| opt | Multi-threaded optimized library (with the global lock). This is the default value |
| dbg | Multi-threaded debug library (with the global lock) |
| opt_mt | Multi-threaded optimized library (with per-object lock for the thread-split model) |
| dbg_mt | Multi-threaded debug library (with per-object lock for the thread-split model) |
Description
Set this variable to always link against the specified version of the Intel MPI Library.
I_MPI_DEBUG_INFO_STRIP-
Turn on/off the debug information stripping while linking applications statically.
Syntax
I_MPI_DEBUG_INFO_STRIP=<arg>
Arguments
| <arg> | Binary indicator |
| enable | yes | on | 1 | Turn on. This is the default value |
| disable | no | off | 0 | Turn off |
Description
Use this option to turn on/off the debug information stripping while linking the Intel MPI Library statically. Debug information is stripped by default.
I_MPI_{C,CXX,FC,F}FLAGS
Set special flags needed for compilation.
Syntax
I_MPI_CFLAGS=<flags>
I_MPI_CXXFLAGS=<flags>
I_MPI_FCFLAGS=<flags>
I_MPI_FFLAGS=<flags>
Arguments
| <flags> | Flag list |
Description
Use this environment variable to specify special compilation flags.
I_MPI_LDFLAGS
Set special flags needed for linking.
Syntax
I_MPI_LDFLAGS=<flags>
Arguments
| <flags> | Flag list |
Description
Use this environment variable to specify special linking flags.
I_MPI_FORT_BIND
Disable mpiicc linking with Fortran bindings.
Syntax
I_MPI_FORT_BIND=<arg>
Arguments
| <arg> | Binary indicator |
| enable | yes | on | 1 | Enable linking. This is the default value |
| disable | no | off | 0 | Disable linking |
Description
By default, the mpiicc also links against the Fortran bindings even if Fortran is not used. Use this environment variable to change this default behavior. Has the same effect as the -nofortbind option.
Parent topic: Environment Variable Reference