The C and Fortran name is listed in the left column and the C++ name is listed in the right column.
| 2c Return Codes | |
| MPI_ERR_ACCESS | MPI::ERR_ACCESS |
| MPI_ERR_AMODE | MPI::ERR_AMODE |
| MPI_ERR_ASSERT | MPI::ERR_ASSERT |
| MPI_ERR_BAD_FILE | MPI::ERR_BAD_FILE |
| MPI_ERR_BASE | MPI::ERR_BASE |
| MPI_ERR_CONVERSION | MPI::ERR_CONVERSION |
| MPI_ERR_DISP | MPI::ERR_DISP |
| MPI_ERR_DUP_DATAREP | MPI::ERR_DUP_DATAREP |
| MPI_ERR_FILE_EXISTS | MPI::ERR_FILE_EXISTS |
| MPI_ERR_FILE_IN_USE | MPI::ERR_FILE_IN_USE |
| MPI_ERR_FILE | MPI::ERR_FILE |
| MPI_ERR_INFO_KEY | MPI::ERR_INFO_VALUE |
| MPI_ERR_INFO_NOKEY | MPI::ERR_INFO_NOKEY |
| MPI_ERR_INFO_VALUE | MPI::ERR_INFO_KEY |
| MPI_ERR_INFO | MPI::ERR_INFO |
| MPI_ERR_IO | MPI::ERR_IO |
| MPI_ERR_KEYVAL | MPI::ERR_KEYVAL |
| MPI_ERR_LOCKTYPE | MPI::ERR_LOCKTYPE |
| MPI_ERR_NAME | MPI::ERR_NAME |
| MPI_ERR_NO_MEM | MPI::ERR_NO_MEM |
| MPI_ERR_NOT_SAME | MPI::ERR_NOT_SAME |
| MPI_ERR_NO_SPACE | MPI::ERR_NO_SPACE |
| MPI_ERR_NO_SUCH_FILE | MPI::ERR_NO_SUCH_FILE |
| MPI_ERR_PORT | MPI::ERR_PORT |
| MPI_ERR_QUOTA | MPI::ERR_QUOTA |
| MPI_ERR_READ_ONLY | MPI::ERR_READ_ONLY |
| MPI_ERR_RMA_CONFLICT | MPI::ERR_RMA_CONFLICT |
| MPI_ERR_RMA_SYNC | MPI::ERR_RMA_SYNC |
| MPI_ERR_SERVICE | MPI::ERR_SERVICE |
| MPI_ERR_SIZE | MPI::ERR_SIZE |
| MPI_ERR_SPAWN | MPI::ERR_SPAWN |
| MPI_ERR_UNSUPPORTED_DATAREP | MPI::ERR_UNSUPPORTED_DATAREP |
| MPI_ERR_UNSUPPORTED_OPERATION | MPI::ERR_UNSUPPORTED_OPERATION |
| MPI_ERR_WIN | MPI::ERR_WIN |
| 2c Assorted Constants | |
| MPI_IN_PLACE | MPI::IN_PLACE |
| MPI_LOCK_EXCLUSIVE | MPI::LOCK_EXCLUSIVE |
| MPI_LOCK_SHARED | MPI::LOCK_SHARED |
| MPI_ROOT | MPI::ROOT |
| 2c Variable Address Size (Fortran only) | |
| MPI_ADDRESS_KIND | Not defined for C++ |
| MPI_INTEGER_KIND | Not defined for C++ |
| MPI_OFFSET_KIND | Not defined for C++ |
| 2c Maximum Sizes for Strings | |
| MPI_MAX_DATAREP_STRING | MPI::MAX_DATAREP_STRING |
| MPI_MAX_INFO_KEY | MPI::MAX_INFO_KEY |
| MPI_MAX_INFO_VAL | MPI::MAX_INFO_VAL |
| MPI_MAX_OBJECT_NAME | MPI::MAX_OBJECT_NAME |
| MPI_MAX_PORT_NAME | MPI::MAX_PORT_NAME |
| 2c Named Predefined Datatypes | |
| MPI_WCHAR | MPI::WCHAR |
| 2c C and C++ (no Fortran) Named Predefined Datatypes | |
| MPI_Fint | MPI::Fint |
| 2c Optional C and C++ (no Fortran) Named Predefined Datatypes | |
| MPI_UNSIGNED_LONG_LONG | MPI::UNSIGNED_LONG_LONG |
| MPI_SIGNED_CHAR | MPI::SIGNED_CHAR |
| 2c Predefined Attribute Keys | |
| MPI_APPNUM | MPI::APPNUM |
| MPI_LASTUSEDCODE | MPI::LASTUSEDCODE |
| MPI_UNIVERSE_SIZE | MPI::UNIVERSE_SIZE |
| MPI_WIN_BASE | MPI::WIN_BASE |
| MPI_WIN_DISP_UNIT | MPI::WIN_DISP_UNIT |
| MPI_WIN_SIZE | MPI::WIN_SIZE |
| 2c Collective Operations | |
| MPI_REPLACE | MPI::REPLACE |
| 2c Null Handles | |
| MPI_FILE_NULL | MPI::FILE_NULL |
| MPI_INFO_NULL | MPI::INFO_NULL |
| MPI_WIN_NULL | MPI::WIN_NULL |
| 2c Mode Constants | |
| MPI_MODE_APPEND | MPI::MODE_APPEND |
| MPI_MODE_CREATE | MPI::MODE_CREATE |
| MPI_MODE_DELETE_ON_CLOSE | MPI::MODE_DELETE_ON_CLOSE |
| MPI_MODE_EXCL | MPI::MODE_EXCL |
| MPI_MODE_NOCHECK | MPI::MODE_NOCHECK |
| MPI_MODE_NOPRECEDE | MPI::MODE_NOPRECEDE |
| MPI_MODE_NOPUT | MPI::MODE_NOPUT |
| MPI_MODE_NOSTORE | MPI::MODE_NOSTORE |
| MPI_MODE_NOSUCCEED | MPI::MODE_NOSUCCEED |
| MPI_MODE_RDONLY | MPI::MODE_RDONLY |
| MPI_MODE_RDWR | MPI::MODE_RDWR |
| MPI_MODE_SEQUENTIAL | MPI::MODE_SEQUENTIAL |
| MPI_MODE_UNIQUE_OPEN | MPI::MODE_UNIQUE_OPEN |
| MPI_MODE_WRONLY | MPI::MODE_WRONLY |
| 2c Datatype Decoding Constants | |
| MPI_COMBINER_CONTIGUOUS | MPI::COMBINER_CONTIGUOUS |
| MPI_COMBINER_DARRAY | MPI::COMBINER_DARRAY |
| MPI_COMBINER_DUP | MPI::COMBINER_DUP |
| MPI_COMBINER_F90_COMPLEX | MPI::COMBINER_F90_COMPLEX |
| MPI_COMBINER_F90_INTEGER | MPI::COMBINER_F90_INTEGER |
| MPI_COMBINER_F90_REAL | MPI::COMBINER_F90_REAL |
| MPI_COMBINER_HINDEXED_INTEGER | MPI::COMBINER_HINDEXED_INTEGER |
| MPI_COMBINER_HINDEXED | MPI::COMBINER_HINDEXED |
| MPI_COMBINER_HVECTOR_INTEGER | MPI::COMBINER_HVECTOR_INTEGER |
| MPI_COMBINER_HVECTOR | MPI::COMBINER_HVECTOR |
| MPI_COMBINER_INDEXED_BLOCK | MPI::COMBINER_INDEXED_BLOCK |
| MPI_COMBINER_INDEXED | MPI::COMBINER_INDEXED |
| MPI_COMBINER_NAMED | MPI::COMBINER_NAMED |
| MPI_COMBINER_RESIZED | MPI::COMBINER_RESIZED |
| MPI_COMBINER_STRUCT_INTEGER | MPI::COMBINER_STRUCT_INTEGER |
| MPI_COMBINER_STRUCT | MPI::COMBINER_STRUCT |
| MPI_COMBINER_SUBARRAY | MPI::COMBINER_SUBARRAY |
| MPI_COMBINER_VECTOR | MPI::COMBINER_VECTOR |
| 2c Threads Constants | |
| MPI_THREAD_FUNNELED | MPI::THREAD_FUNNELED |
| MPI_THREAD_MULTIPLE | MPI::THREAD_MULTIPLE |
| MPI_THREAD_SERIALIZED | MPI::THREAD_SERIALIZED |
| MPI_THREAD_SINGLE | MPI::THREAD_SINGLE |
| 2c File Operation Constants | |
| MPI_DISPLACEMENT_CURRENT | MPI::DISPLACEMENT_CURRENT |
| MPI_DISTRIBUTE_BLOCK | MPI::DISTRIBUTE_BLOCK |
| MPI_DISTRIBUTE_CYCLIC | MPI::DISTRIBUTE_CYCLIC |
| MPI_DISTRIBUTE_DFLT_DARG | MPI::DISTRIBUTE_DFLT_DARG |
| MPI_DISTRIBUTE_NONE | MPI::DISTRIBUTE_NONE |
| MPI_ORDER_C | MPI::ORDER_C |
| MPI_ORDER_FORTRAN | MPI::ORDER_FORTRAN |
| MPI_SEEK_CUR | MPI::SEEK_CUR |
| MPI_SEEK_END | MPI::SEEK_END |
| MPI_SEEK_SET | MPI::SEEK_SET |
| 2c F90 Datatype Matching Constants | |
| MPI_TYPECLASS_COMPLEX | MPI::TYPECLASS_COMPLEX |
| MPI_TYPECLASS_INTEGER | MPI::TYPECLASS_INTEGER |
| MPI_TYPECLASS_REAL | MPI::TYPECLASS_REAL |
| 2c Handles to Assorted Structures in C and C++ (no Fortran) | |
| MPI_File | MPI::File |
| MPI_Info | MPI::Info |
| MPI_Win | MPI::Win |
| 2c Constants Specifying Empty or Ignored Input | |
| MPI_ARGVS_NULL | MPI::ARGVS_NULL |
| MPI_ARGV_NULL | MPI::ARGV_NULL |
| MPI_ERRCODES_IGNORE | Not defined for C++ |
| MPI_STATUSES_IGNORE | Not defined for C++ |
| MPI_STATUS_IGNORE | Not defined for C++ |
| 2c C Constants Specifying Ignored Input (no C++ or Fortran) | |
| MPI_F_STATUSES_IGNORE | Not defined for C++ |
| MPI_F_STATUS_IGNORE | Not defined for C++ |
| C and C++ cpp Constants and Fortran Parameters |
| MPI_SUBVERSION |
| MPI_VERSION |