@InProceedings{kwan:cm5io, author = {Thomas T. Kwan and Daniel A. Reed}, title = {Performance of the {CM-5} Scalable File System}, booktitle = {Proceedings of the 8th ACM International Conference on Supercomputing}, year = {1994}, month = {July}, pages = {156--165}, publisher = {ACM Press}, address = {Manchester, UK}, keywords = {parallel I/O, parallel architecture, multiprocessor file system, pario-bib}, comment = {They measure the performance of the CM-5 Scalable File System using synthetic benchmarks. They compare CM-Fortran with CMMD. The hardware-dependent (``physical'') modes were much faster than the generic-format modes, which have to reorder data between the processor distribution and the disk distribution. The network turned out to be a bottleneck for the performance when reordering was needed. They conclude that more user control over the I/O would be very helpful.} }