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701. Attributes | PARALLEL.RU - Информационно-аналитический центр по параллельным
... Attributes . ... This requires that attributes be tagged either as ``C,'' ``C++'' or ``Fortran,'' and that the language tag be checked in order to use the right calling convention for the callback function. ... The attribute manipulation functions described in Section 5.7 of the MPI-1 standard define attributes arguments to be of type void* in C, and of type INTEGER, in Fortran. ... Fortran attribute functions put and get integer valued attributes. ... A. C to Fortran . ... Fortran code . ... Центры...
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Ссылки http://www.parallel.ru/docs/mpi2/node67.html -- 20.8 Кб -- 09.04.2016
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702. The Info Object | PARALLEL.RU - Информационно-аналитический центр по
... The Info Object . ... It consists of ( key, value) pairs (both key and value are strings). ... int MPI_Info_create(MPI_Info *info) . ... int MPI_Info_set(MPI_Info info, char *key, char *value) . ... int MPI_Info_get(MPI_Info info, char *key, int valuelen, char *value, int *flag) . ... bool MPI::Info::Get(const char* key, int valuelen, char* value) const . ... MPI_INFO_DUP duplicates an existing info object, creating a new object, with the same (key,value) pairs and the same ordering of keys. ...
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Ссылки http://www.parallel.ru/docs/mpi2/node53.html -- 25.5 Кб -- 09.04.2016
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703. Error Handlers for Windows | PARALLEL.RU - Информационно-аналитический центр по
... Error Handlers for Windows . ... MPI_WIN_CREATE_ERRHANDLER(function, errhandler) . ... OUT errhandler] MPI error handler (handle) . ... SUBROUTINE WIN_ERRHANDLER_FN(WIN, ERROR_CODE, .. ... INOUT win] window (handle) . IN errhandler] new error handler for window (handle) . ... The error handler must be either a predefined error handler, or an error handler created by a call to MPI_WIN_CREATE_ERRHANDLER. ... OUT errhandler] error handler currently associated with window (handle) . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node73.html -- 18.3 Кб -- 09.04.2016
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704. Datatype Constructor MPI_TYPE_CREATE_INDEXED_BLOCK | PARALLEL.RU -
... Datatype Constructor MPI_TYPE_CREATE_INDEXED_BLOCK . ... This function is the same as MPI_TYPE_INDEXED except that the blocklength is the same for all blocks. ... IN blocklength] size of block (integer) . ... int MPI_Type_create_indexed_block(int count, int blocklength, int array_of_displacements[], MPI_Datatype oldtype, MPI_Datatype *newtype) . ... MPI::Datatype MPI::Datatype::Create_indexed_block( int count, int blocklength, const int array_of_displacements[]) const . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node45.html -- 17.2 Кб -- 09.04.2016
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705. Starting Processes and Establishing Communication | PARALLEL.RU -
... Starting Processes and Establishing Communication . Up: Process Manager Interface Next: Starting Multiple Executables and Establishing Communication Previous: Processes in MPI . The following routine starts a number of MPI processes and establishes communication with them, returning an intercommunicator. ... MPI_COMM_SPAWN tries to start maxprocs identical copies of the MPI program specified by command, establishing communication with them and returning an intercommunicator. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node95.html -- 31.1 Кб -- 09.04.2016
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706. Constants | PARALLEL.RU - Информационно-аналитический центр по параллельным
... MPI constants have the same value in all languages, unless specified otherwise. This does not apply to constant handles ( MPI_INT, MPI_COMM_WORLD, MPI_ERRORS_RETURN, MPI_SUM, etc.) ... Also constant ``addresses,'' i.e., special values for reference arguments that are not handles, such as MPI_BOTTOM or MPI_STATUS_IGNORE may have different values in different languages. ... The current MPI standard specifies that MPI_BOTTOM can be used in initialization expressions in C, but not in Fortran. ...
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Ссылки http://www.parallel.ru/docs/mpi2/node69.html -- 17.7 Кб -- 09.04.2016
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707. Choice | PARALLEL.RU - Информационно-аналитический центр по параллельным
... Choice . Up: Data Types Next: Addresses Previous: Named Constants . MPI functions sometimes use arguments with a choice (or union) data type. Distinct calls to the same routine may pass by reference actual arguments of different types. The mechanism for providing such arguments will differ from language to language. For Fortran, the document uses < type > to represent a choice variable; for C and C++, we use void *. ... MPI-2.0 of July 18, 1997 . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node14.html -- 16.1 Кб -- 09.04.2016
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708. Named Constants | PARALLEL.RU - Информационно-аналитический центр по
... Named Constants . ... MPI procedures sometimes assign a special meaning to a special value of a basic type argument; e.g., tag is an integer-valued argument of point-to-point communication operations, with a special wild-card value, MPI_ANY_TAG. ... MPI also provides predefined named constant handles, such as MPI_COMM_WORLD. All named constants, with the exceptions noted below for Fortran, can be used in initialization expressions or assignments. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node13.html -- 17.9 Кб -- 09.04.2016
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709. Spawn Example | PARALLEL.RU - Информационно-аналитический центр по параллельным
... Spawn Example . ... Up: Spawn Example Next: Establishing Communication Previous: Spawn Example . manager */ #include "mpi.h" int main(int argc, char *argv[]) { int world_size, universe_size, *universe_sizep, flag; MPI_Comm everyone; /* intercommunicator */ char worker_program[100]; . ... include "mpi.h" int main(int argc, char *argv[]) { int size; MPI_Comm parent; MPI_Init(&argc, &argv); MPI_Comm_get_parent(&parent); if (parent == MPI_COMM_NULL) error("No parent!" ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node98.html -- 19.3 Кб -- 09.04.2016
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710. Starting Multiple Executables and Establishing Communication | PARALLEL.RU -
... Starting Multiple Executables and Establishing Communication . Up: Process Manager Interface Next: Reserved Keys Previous: Starting Processes and Establishing Communication . ... The following routine spawns multiple binaries or the same binary with multiple sets of arguments, establishing communication with them and placing them in the same MPI_COMM_WORLD. ... MPI_COMM_SPAWN_MULTIPLE is identical to MPI_COMM_SPAWN except that there are multiple executable specifications. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node96.html -- 23.2 Кб -- 09.04.2016
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711. Signed Characters and Reductions | PARALLEL.RU - Информационно-аналитический
... Signed Characters and Reductions . ... MPI-1.2 already has the C types MPI_CHAR and MPI_UNSIGNED_CHAR. ... To overcome this, a new MPI predefined datatype, MPI_SIGNED_CHAR, is added to the predefined datatypes of MPI-2, which corresponds to the ANSI C and ANSI C++ datatype signed char . ... The types MPI_SIGNED_CHAR and MPI_UNSIGNED_CHAR can be used in reduction operations. MPI_CHAR (which represents printable characters) cannot be used in reduction operations. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node83.html -- 17.7 Кб -- 09.04.2016
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712. New Predefined Datatypes | PARALLEL.RU - Информационно-аналитический центр по
... New Predefined Datatypes . Up: Miscellany Next: Wide Characters Previous: Distributed Array Datatype Constructor . ... MPI-2.0 of July 18, 1997 . HTML Generated on August 11, 1997 . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node81.html -- 15.8 Кб -- 09.04.2016
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713. MPI Opaque Objects | PARALLEL.RU - Информационно-аналитический центр по
... MPI Opaque Objects . ... Unless said otherwise, opaque objects are ``the same'' in all languages: they carry the same information, and have the same meaning in both languages. The mechanism described in the previous section can be used to pass references to MPI objects from language to language. ... Up: MPI Opaque Objects Next: Callback Functions Previous: MPI Opaque Objects . ... Up: MPI Opaque Objects Next: Reduce Operations Previous: Callback Functions . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node61.html -- 29.3 Кб -- 09.04.2016
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714. Assumptions | PARALLEL.RU - Информационно-аналитический центр по параллельным
... Assumptions . Up: Language Interoperability Next: Initialization Previous: Introduction . ... These conventions specify how to link routines in different languages into one program, how to call functions in a different language, how to pass arguments between languages, and the correspondence between basic data types in different languages. ... However, we assume that a Fortran INTEGER , as well as a (sequence associated) Fortran array of INTEGER s, can be passed to a C or C++ program. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node57.html -- 16.9 Кб -- 09.04.2016
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715. Introduction | PARALLEL.RU - Информационно-аналитический центр по параллельным
... Introduction . Up: Language Interoperability Next: Assumptions Previous: Language Interoperability . ... MPI currently supports ISO (previously ANSI) C, C++, and Fortran bindings. It should be possible for applications in any of the supported languages to call MPI-related functions in another language. ... It is highly desirable that the solution for interlanguage interoperability be extendable to new languages, should MPI bindings be defined for such languages. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node56.html -- 17.3 Кб -- 09.04.2016
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716. Memory Allocation | PARALLEL.RU - Информационно-аналитический центр по
... Memory Allocation . ... MPI_ALLOC_MEM(size, info, baseptr) . ... MPI_FREE_MEM(base) . ... If MPI_ALLOC_MEM allocates special memory, then a design similar to the design of C malloc and free functions has to be used, in order to find out the size of a memory segment, when the segment is freed. ... A call to MPI_ALLOC_MEM can be used in shared memory systems to allocate memory in a shared memory segment. ... no memory is allocated CALL MPI_ALLOC_MEM(4*100*100, MPI_INFO_NULL, P, IERR) ! ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node54.html -- 20.1 Кб -- 09.04.2016
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717. Version Number | PARALLEL.RU - Информационно-аналитический центр по
... Version Number . Up: Miscellany Next: Datatype Constructor MPI_TYPE_CREATE_INDEXED_BLOCK Previous: Passing NULL to MPI_Init . The values for the MPI_VERSION and MPI_SUBVERSION for an MPI-2 implementation are 2 and 0 respectively. This applies both to the values of the above constants and to the values returned by MPI_GET_VERSION. ... MPI-2.0 of July 18, 1997 . HTML Generated on August 11, 1997 . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node44.html -- 16.0 Кб -- 09.04.2016
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718. Error Handlers for Communicators | PARALLEL.RU - Информационно-аналитический
... Error Handlers for Communicators . ... MPI_COMM_CREATE_ERRHANDLER(function, errhandler) . ... OUT errhandler] MPI error handler (handle) . ... SUBROUTINE COMM_ERRHANDLER_FN(COMM, ERROR_CODE, .. ... IN errhandler] new error handler for communicator (handle) . ... The error handler must be either a predefined error handler, or an error handler created by a call to MPI_COMM_CREATE_ERRHANDLER. ... OUT errhandler] error handler currently associated with communicator (handle) . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node72.html -- 18.7 Кб -- 09.04.2016
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719. Interlanguage Communication | PARALLEL.RU - Информационно-аналитический центр
... Interlanguage Communication . ... The type matching rules for communications in MPI are not changed: the datatype specification for each item sent should match, in type signature, the datatype specification used to receive this item (unless one of the types is MPI_PACKED). ... create an absolute datatype for array R CALL MPI_GET_ADDRESS( R, ADDR, IERR) CALL MPI_TYPE_CREATE_STRUCT(1, 5, ADDR, MPI_REAL, TYPE, IERR) CALL MPI_TYPE_COMMIT(TYPE, IERR) . ... type = MPI_Type_f2c(*fhandle); . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node70.html -- 17.5 Кб -- 09.04.2016
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720. Clarification of MPI_REDUCE | PARALLEL.RU - Информационно-аналитический центр
... Clarification of MPI_REDUCE . ... The datatype argument of MPI_REDUCE must be compatible with op. Predefined operators work only with the MPI types listed in Section 4.9.2 and Section 4.9.3. User-defined operators may operate on general, derived datatypes. ... Note that it is possible for users to supply different user-defined operations to MPI_REDUCE in each process. ... Advice to users. Users should make no assumptions about how MPI_REDUCE is implemented. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi2/node37.html -- 17.2 Кб -- 09.04.2016
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