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The MPI specification was developed by the MPI Forum, a group of software developers, computer vendors, academics, and computer-science researchers whose goal was to develop a standard for writing message-passing programs that would be efficient, flexible, and portable.
The outcome, known as the MPI Standard, was first published in 1993; its most recent version (MPI-2) was published in July 1997. Open MPI 1.2 includes all MPI 1.2-compliant and MPI 2-compliant routines.
For more information about Open MPI, see the
following URL:
http://www.open-mpi.org
The MPI standards are available at the following URL:
http://www.mpi-forum.org
For more information on arguments, see the orterun.1 man page.
For a complete listing of MCA parameters and their descriptions,
issue the command ompi_info -h or ompi_info -param all all. This information
also appears in the FAQ on the Open MPI web site at:
http://www.open-mpi.org/faq/?category=tuning#mca-params
For more information on Open MPI error codes, see mpi.h in the include directory.
Standard error return classes for Open MPI:
MPI_SUCCESS 0 Successful return code. MPI_ERR_BUFFER 1 Invalid buffer pointer. MPI_ERR_COUNT 2 Invalid count argument. MPI_ERR_TYPE 3 Invalid datatype argument. MPI_ERR_TAG 4 Invalid tag argument. MPI_ERR_COMM 5 Invalid communicator. MPI_ERR_RANK 6 Invalid rank. MPI_ERR_REQUEST 7 Invalid MPI_Request handle. MPI_ERR_ROOT 8 Invalid root. MPI_ERR_GROUP 9 Null group passed to function. MPI_ERR_OP 10 Invalid operation. MPI_ERR_TOPOLOGY 11 Invalid topology. MPI_ERR_DIMS 12 Illegal dimension argument. MPI_ERR_ARG 13 Invalid argument. MPI_ERR_UNKNOWN 14 Unknown error. MPI_ERR_TRUNCATE 15 Message truncated on receive. MPI_ERR_OTHER 16 Other error; use Error_string. MPI_ERR_INTERN 17 Internal error code. MPI_ERR_IN_STATUS 18 Look in status for error value. MPI_ERR_PENDING 19 Pending request. MPI_ERR_ACCESS 20 Permission denied. MPI_ERR_AMODE 21 Unsupported amode passed to open. MPI_ERR_ASSERT 22 Invalid assert. MPI_ERR_BAD_FILE 23 Invalid file name (for example, path name too long). MPI_ERR_BASE 24 Invalid base. MPI_ERR_CONVERSION 25 An error occurred in a user-supplied data-conversion function. MPI_ERR_DISP 26 Invalid displacement. MPI_ERR_DUP_DATAREP 27 Conversion functions could not be registered because a data representation identifier that was already defined was passed to MPI_REGISTER_DATAREP. MPI_ERR_FILE_EXISTS 28 File exists. MPI_ERR_FILE_IN_USE 29 File operation could not be completed, as the file is currently open by some process. MPI_ERR_FILE 30 Invalid file handle. MPI_ERR_INFO_KEY 31 Illegal info key. MPI_ERR_INFO_NOKEY 32 No such key. MPI_ERR_INFO_VALUE 33 Illegal info value. MPI_ERR_INFO 34 Invalid info object. MPI_ERR_IO 35 I/O error. MPI_ERR_KEYVAL 36 Illegal key value. MPI_ERR_LOCKTYPE 37 Invalid locktype. MPI_ERR_NAME 38 Name not found. MPI_ERR_NO_MEM 39 Memory exhausted. MPI_ERR_NOT_SAME 40 Collective argument not identical on all processes, or collective routines called in a different order by different processes. MPI_ERR_NO_SPACE 41 Not enough space. MPI_ERR_NO_SUCH_FILE 42 File (or directory) does not exist. MPI_ERR_PORT 43 Invalid port. MPI_ERR_QUOTA 44 Quota exceeded. MPI_ERR_READ_ONLY 45 Read-only file system. MPI_ERR_RMA_CONFLICT 46 Conflicting accesses to window. MPI_ERR_RMA_SYNC 47 Erroneous RMA synchronization. MPI_ERR_SERVICE 48 Invalid publish/unpublish. MPI_ERR_SIZE 49 Invalid size. MPI_ERR_SPAWN 50 Error spawning. MPI_ERR_UNSUPPORTED_DATAREP 51 Unsupported datarep passed to MPI_File_set_view. MPI_ERR_UNSUPPORTED_OPERATION 52 Unsupported operation, such as seeking on a file that supports only sequential access. MPI_ERR_WIN 53 Invalid window. MPI_T_ERR_MEMORY 54 Out of memory. MPI_T_ERR_NOT_INITIALIZED 55 Interface not initialized. MPI_T_ERR_CANNOT_INIT 56 Interface not in the state to be initialized. MPI_T_ERR_INVALID_INDEX 57 The enumeration index is invalid. MPI_T_ERR_INVALID_ITEM 58 The item index queried is out of range. MPI_T_ERR_INVALID_HANDLE 59 The handle is invalid. MPI_T_ERR_OUT_OF_HANDLES 60 No more handles available. MPI_T_ERR_OUT_OF_SESSIONS 61 No more sessions available. MPI_T_ERR_INVALID_SESSION 62 Session argument is not a valid session. MPI_T_ERR_CVAR_SET_NOT_NOW 63 Variable cannot be set at this moment. MPI_T_ERR_CVAR_SET_NEVER 64 Variable cannot be set until end of execution. MPI_T_ERR_PVAR_NO_STARTSTOP 65 Variable cannot be started or stopped. MPI_T_ERR_PVAR_NO_WRITE 66 Variable cannot be written or reset. MPI_T_ERR_PVAR_NO_ATOMIC 67 Variable cannot be read and written atomically. MPI_ERR_RMA_RANGE 68 Target memory is not part of the window (in the case of a window created with MPI_WIN_CREATE_DYNAMIC, target memory is not attached). MPI_ERR_RMA_ATTACH 69 Memory cannot be attached (e.g., because of resource exhaustion). MPI_ERR_RMA_FLAVOR 70 Passed window has the wrong flavor for the called function. MPI_ERR_RMA_SHARED 71 Memory cannot be shared (e.g., some process in the group of the specified communicator cannot expose shared memory). MPI_T_ERR_INVALID 72 Invalid use of the interface or bad parameter values(s). MPI_T_ERR_INVALID_NAME 73 The variable or category name is invalid. MPI_ERR_LASTCODE 93 Last error code.