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401. Language Binding | PARALLEL.RU - Информационно-аналитический центр по
... Language Binding . ... This section defines the rules for MPI language binding in general and for Fortran 77 and ANSI C in particular. ... Although we consider it premature to define other bindings to Fortran 90 and C++, the current bindings are designed to encourage, rather than discourage, experimentation with better bindings that might be adopted later. ... There are several important language binding issues not addressed by this standard. ... Return to MPI Standard Index . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node19.html -- 17.2 Кб -- 09.04.2016
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402. Addresses | PARALLEL.RU - Информационно-аналитический центр по параллельным
... Addresses . Up: Data Types Next: Language Binding Previous: Choice . Some MPI procedures use address arguments that represent an absolute address in the calling program. The datatype of such an argument is an integer of the size needed to hold any valid address in the execution environment. ... Return to MPI Standard Index . Return to MPI home page . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node18.html -- 16.0 Кб -- 09.04.2016
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403. 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, we use (void *). ... Return to MPI Standard Index . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node17.html -- 16.1 Кб -- 09.04.2016
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404. 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. Such arguments will have a range of regular values, which is a proper subrange of the range of values of the corresponding basic type; special values (such as MPI_ANY_TAG) will be outside the regular range. ... Return to MPI Standard Index . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node16.html -- 16.9 Кб -- 09.04.2016
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405. State | PARALLEL.RU - Информационно-аналитический центр по параллельным
... State . Up: Data Types Next: Named constants Previous: Array arguments . MPI procedures use at various places arguments with state types. The values of such data type are all identified by names, and no operation is defined on them. For example, the MPI_ERRHANDLER_SET routine has a state type argument with values MPI_ERRORS_ARE_FATAL, MPI_ERRORS_RETURN, etc. ... Return to MPI Standard Index . Return to MPI home page . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node15.html -- 16.0 Кб -- 09.04.2016
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406. Array arguments | PARALLEL.RU - Информационно-аналитический центр по
... Array arguments . Up: Data Types Next: State Previous: Opaque objects . An MPI call may need an argument that is an array of opaque objects, or an array of handles. The array-of-handles is a regular array with entries that are handles to objects of the same type in consecutive locations in the array. Whenever such an array is used, an additional len argument is required to indicate the number of valid entries (unless this number can be derived otherwise). ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node14.html -- 16.4 Кб -- 09.04.2016
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407. Opaque objects | PARALLEL.RU - Информационно-аналитический центр по
... Opaque objects . ... MPI manages system memory that is used for buffering messages and for storing internal representations of various MPI objects such as groups, communicators, datatypes, etc. ... Opaque objects are accessed via handles , which exist in user space. MPI procedures that operate on opaque objects are passed handle arguments to access these objects. ... MPI provides certain predefined opaque objects and predefined, static handles to these objects. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node13.html -- 21.6 Кб -- 09.04.2016
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408. Data Types | PARALLEL.RU - Информационно-аналитический центр по параллельным
. Перейти к основному содержанию . Главная . ? Документы . ? Data Types . Up: MPI Terms and Conventions Next: Opaque objects Previous: Semantic Terms . Up: MPI Terms and Conventions Next: Opaque objects Previous: Semantic Terms . Return to MPI Standard Index . Return to MPI home page . О Сервере . Что нового? . Компьютеры . Технологии . Исследования . Метакомпьютинг . Информация . Конференции . Центры . История . Россия . Новости . Общение . Наш сервис . Поиск .
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Ссылки http://www.parallel.ru/docs/mpi1.1/node12.html -- 15.8 Кб -- 09.04.2016
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409. Semantic Terms | PARALLEL.RU - Информационно-аналитический центр по
... Semantic Terms . Up: MPI Terms and Conventions Next: Data Types Previous: Procedure Specification . When discussing MPI procedures the following semantic terms are used. ... If completion of the procedure depends only on the local executing process. ... If completion of the operation may require the execution of some MPI procedure on another process. ... If all processes in a process group need to invoke the procedure. ... Return to MPI Standard Index . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node11.html -- 16.8 Кб -- 09.04.2016
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410. Procedure Specification | PARALLEL.RU - Информационно-аналитический центр по
... Procedure Specification . ... The arguments of procedure calls are marked as IN, OUT or INOUT. ... the call may update an argument marked OUT, . ... There is one special case --- if an argument is a handle to an opaque object (these terms are defined in Section Opaque objects ), and the object is updated by the procedure call, then the argument is marked OUT. ... Unless specified otherwise, an argument of type OUT or type INOUT cannot be aliased with any other argument passed to an MPI procedure. ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node10.html -- 18.2 Кб -- 09.04.2016
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411. Group Management | PARALLEL.RU - Информационно-аналитический центр по
... Group Management . Up: Groups, Contexts, and Communicators Next: Group Accessors Previous: Predefined Intra-Communicators . This section describes the manipulation of process groups in MPI. ... Return to MPI Standard Index . Return to MPI home page . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node96.html -- 16.0 Кб -- 09.04.2016
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412. Group Destructors | PARALLEL.RU - Информационно-аналитический центр по
... Group Destructors . Up: Group Management Next: Communicator Management Previous: Group Constructors . MPI_GROUP_FREE(group) . ... int MPI_Group_free(MPI_Group *group) . ... The handle group is set to MPI_GROUP_NULL by the call. ... One can keep a reference count that is incremented for each call to MPI_COMM_CREATE and MPI_COMM_DUP, and decremented for each call to MPI_GROUP_FREE or MPI_COMM_FREE; the group object is ultimately deallocated when the reference count drops to zero. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node99.html -- 16.6 Кб -- 09.04.2016
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413. Group Constructors | PARALLEL.RU - Информационно-аналитический центр по
... Group Constructors . ... A group, once created, can have several references to it by making copies of the handle. ... OUT newgroup] union group (handle) . ... MPI_GROUP_INCL(group, n, ranks, newgroup) . ... OUT newgroup] new group derived from above, in the order defined by ranks (handle) . ... The function MPI_GROUP_INCL creates a group newgroup that consists of the n processes in group with ranks rank[0], , rank[n-1]; the process with rank i in newgroup is the process with rank ranks[i] in group. ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node98.html -- 25.8 Кб -- 09.04.2016
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414. Group Accessors | PARALLEL.RU - Информационно-аналитический центр по
... Group Accessors . ... int MPI_Group_size(MPI_Group group, int *size) . ... MPI_GROUP_TRANSLATE_RANKS (group1, n, ranks1, group2, ranks2) . ... OUT ranks2] array of corresponding ranks in group2, MPI_UNDE- FINED when no correspondence exists. int MPI_Group_translate_ranks (MPI_Group group1, int n, int *ranks1, MPI_Group group2, int *ranks2) . MPI_GROUP_TRANSLATE_RANKS(GROUP1, N, RANKS1, GROUP2, RANKS2, IERROR) . ... int MPI_Group_compare(MPI_Group group1,MPI_Group group2, int *result) . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node97.html -- 18.3 Кб -- 09.04.2016
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415. Communication initiation | PARALLEL.RU - Информационно-аналитический центр по
... Communication initiation . ... MPI_ISEND(buf, count, datatype, dest, tag, comm, request) . ... int MPI_Isend(void* buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm, MPI_Request *request) . MPI_ISEND(BUF, COUNT, DATATYPE, DEST, TAG, COMM, REQUEST, IERROR) . ... INTEGER COUNT, DATATYPE, DEST, TAG, COMM, REQUEST, IERROR . ... int MPI_Ibsend(void* buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm, MPI_Request *request) . ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node46.html -- 21.2 Кб -- 09.04.2016
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416. Communication Objects | PARALLEL.RU - Информационно-аналитический центр по
... Communication Objects . ... Nonblocking communications use opaque request objects to identify communication operations and match the operation that initiates the communication with the operation that terminates it. ... A request object identifies various properties of a communication operation, such as the send mode, the communication buffer that is associated with it, its context, the tag and destination arguments to be used for a send, or the tag and source arguments to be used for a receive. ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node45.html -- 16.5 Кб -- 09.04.2016
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417. Model implementation of buffered mode | PARALLEL.RU -
... Model implementation of buffered mode . Up: Buffer allocation and usage Next: Nonblocking communication Previous: Buffer allocation and usage . ... The entries are stored in successive locations in the buffer. ... A buffered send call results in the execution of the following code. ... Find the next contiguous empty space of n bytes in buffer (space following queue tail, or space at start of buffer if queue tail is too close to end of buffer). ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node43.html -- 18.0 Кб -- 09.04.2016
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418. Semantics of Nonblocking Communications | PARALLEL.RU -
... Semantics of Nonblocking Communications . ... The semantics of nonblocking communication is defined by suitably extending the definitions in Section Semantics of point-to-point communication . Order Nonblocking communication operations are ordered according to the execution order of the calls that initiate the communication. The non-overtaking requirement of Section Semantics of point-to-point communication is extended to nonblocking communication, with this definition of order being used. ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node48.html -- 19.0 Кб -- 09.04.2016
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419. Communication Completion | PARALLEL.RU - Информационно-аналитический центр по
... Communication Completion . ... MPI_REQUEST_NULL. ... A empty status is a status which is set to return tag = MPI_ANY_TAG, source = MPI_ANY_SOURCE, and is also internally configured so that calls to MPI_GET_COUNT and MPI_GET_ELEMENTS return count = 0. ... INTEGER REQUEST, STATUS(MPI_STATUS_SIZE), IERROR . ... Once a request is freed by a call to MPI_REQUEST_FREE, it is not possible to check for the successful completion of the associated communication with calls to MPI_WAIT or MPI_TEST. ... Центры . ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node47.html -- 25.4 Кб -- 09.04.2016
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420. Nonblocking communication | PARALLEL.RU - Информационно-аналитический центр по
... Nonblocking communication . ... A nonblocking send start call initiates the send operation, but does not complete it. ... Similarly, a nonblocking receive start call initiates the receive operation, but does not complete it. ... Note that a synchronous, nonblocking send may complete, if matched by a nonblocking receive, before the receive complete call occurs. It can complete as soon as the sender ``knows'' the transfer will complete, but before the receiver ``knows'' the transfer will complete.) ...
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Ссылки http://www.parallel.ru/docs/mpi1.1/node44.html -- 20.9 Кб -- 09.04.2016
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