Implementation and Evaluation of an MPI-IO Interface for GPFS in ROMIO
Proceedings of the 15th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Improving Parallel Write by Node-Level Request Scheduling
CCGRID '09 Proceedings of the 2009 9th IEEE/ACM International Symposium on Cluster Computing and the Grid
Latency Hiding File I/O for Blue Gene Systems
CCGRID '09 Proceedings of the 2009 9th IEEE/ACM International Symposium on Cluster Computing and the Grid
Multiple-Level MPI File Write-Back and Prefetching for Blue Gene Systems
Proceedings of the 16th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Implementation and Evaluation of File Write-Back and Prefetching for MPI-IO Over GPFS
International Journal of High Performance Computing Applications
Improving collective I/O performance using pipelined two-phase I/O
Proceedings of the 2012 Symposium on High Performance Computing
Improving collective I/O performance by pipelining request aggregation and file access
Proceedings of the 20th European MPI Users' Group Meeting
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This paper presents the design and implementation of a new file system independent collective I/O optimization based on file views: view-based collective I/O. View-based collective I/O has been implemented and evaluated inside ROMIO implementation of MPI-IO standard. The evaluation section shows that view-based I/O outperforms the original two-phase collective I/O from ROMIO in most of the cases for three well-known parallel I/O benchmarks. This is especially due to a smaller cost of scatter/gather operations, a reduction of the metadata overhead, and a smaller number of collective communication and synchronization primitives used in the implementation.