@Article{moore:ddio, author = {Jason A. Moore and Michael J. Quinn}, title = {Enhancing Disk-Directed {I/O} for Fine-Grained Redistribution of File Data}, journal = {Parallel Computing}, year = {1997}, month = {June}, volume = {23}, number = {4}, pages = {477--499}, publisher = {North-Holland (Elsevier Scientific)}, keywords = {parallel I/O, multiprocessor file system, interprocessor communication, pario-bib}, comment = {They propose several enhancements to disk-directed I/O (see kotz:diskdir) that aim to improve performance on fine-grained distributions, that is, where each block from the disk is broken into small pieces that are scattered among the compute processors. One enhancement combines multiple pieces, possibly from separate disk blocks, into a single message. Another is to use two-phase I/O (see delrosario:two-phase), but to use disk-directed I/O to read data from the disks into CP memories, efficiently, then permute. This latter technique is probably faster than normal two-phase I/O that uses a traditional file system, not disk-directed I/O, for the read.} }