MPI datatype marshalling: a case study in datatype equivalence

Authors:
Dries Kimpe;David Goodell;Robert Ross
Affiliations:
Argonne National Laboratory, Argonne, IL and University of Chicago, Chicago, IL;Argonne National Laboratory, Argonne, IL;Argonne National Laboratory, Argonne, IL
Venue:
EuroMPI'10 Proceedings of the 17th European MPI users' group meeting conference on Recent advances in the message passing interface
Year:
2010

Citing 6
Cited 0

Flattening on the Fly: Efficient Handling of MPI Derived Datatypes

Proceedings of the 6th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Runtime Checking of Datatype Signatures in MPI

Proceedings of the 7th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
A Portable Method for Finding User Errors in the Usage of MPI Collective Operations

International Journal of High Performance Computing Applications
Constructing MPI Input-output Datatypes for Efficient Transpacking

Proceedings of the 15th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Processing MPI Datatypes Outside MPI

Proceedings of the 16th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Hash functions for datatype signatures in MPI

PVM/MPI'05 Proceedings of the 12th European PVM/MPI users' group conference on Recent Advances in Parallel Virtual Machine and Message Passing Interface

Quantified Score

Hi-index	0.00

Visualization

Abstract

MPI datatypes are a convenient abstraction for manipulating complex data structures and are useful in a number of contexts. In some cases, these descriptions need to be preserved on disk or communicated between processes, such as when defining RMA windows. We propose an extension to MPI that enables marshalling and unmarshalling MPI datatypes in the spirit of MPI_Pack/MPI_Unpack. Issues in MPI datatype equivalence are discussed in detail and an implementation of the new interface outside of MPI is presented. The new marshalling interface provides a mechanism for serializing all aspects of an MPI datatype: the typemap, upper/lower bounds, name, contents/envelope information, and attributes.