By Jose Rolim

ISBN-10: 354067442X

ISBN-13: 9783540674429

This quantity comprises the lawsuits from the workshops held along with the IEEE overseas Parallel and disbursed Processing Symposium, IPDPS 2000, on 1-5 could 2000 in Cancun, Mexico. The workshopsprovidea discussion board for bringing jointly researchers,practiti- ers, and architects from a number of backgrounds to debate the state-of-the-art in parallelism.Theyfocusondi erentaspectsofparallelism,fromruntimesystems to formal equipment, from optics to abnormal difficulties, from biology to networks of private pcs, from embedded structures to programming environments; the next workshops are represented during this quantity: { Workshop on computer dependent Networks of Workstations { Workshop on Advances in Parallel and disbursed Computational versions { Workshop on Par. and Dist. Comp. in picture, Video, and Multimedia { Workshop on High-Level Parallel Prog. versions and Supportive Env. { Workshop on excessive functionality information Mining { Workshop on fixing Irregularly established difficulties in Parallel { Workshop on Java for Parallel and dispensed Computing { WorkshoponBiologicallyInspiredSolutionsto ParallelProcessingProblems { Workshop on Parallel and disbursed Real-Time structures { Workshop on Embedded HPC platforms and purposes { Recon gurable Architectures Workshop { Workshop on Formal tools for Parallel Programming { Workshop on Optics and machine technological know-how { Workshop on Run-Time structures for Parallel Programming { Workshop on Fault-Tolerant Parallel and allotted structures All papers released within the workshops complaints have been chosen by way of the p- gram committee at the foundation of referee reviews. each one paper used to be reviewed via self sufficient referees who judged the papers for originality, caliber, and cons- tency with the subjects of the workshops.

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Extra resources for Parallel and Distributed Processing: 15 IPDPS 2000 Workshops Cancun, Mexico, May 1–5, 2000 Proceedings

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Threshold values for PIO and DMA can be adjusted during runtime. In PIO mode, the ATOLL API o ers zero level communication. Besides the message passing functionality the ATOLL API o ers lock and unlock primitives to the semaphore, which is available for each hostport. The ATOLL API is open source. Myrinet and SCI Well known API's for the Myrinet NIC are the PM and GM libraries. Both API's are open source and o er send and receive functions in a message passing style. For SCI, Dolphin and Scali o er low level API's to create, map and export memory to remote nodes.

Send and receive operations carry the physical address of the destination bu er and the DMA engine copies the contiguous data directly to the destination address. Typically, a rendezvous model is needed before such operation can take place, since the location at the receiver side is not know a priori. A requirement for the NIC is touch dynamically pinned down data. This DMA method also only makes sense, if the data to be transferred is locked down once and the segment can be re-used. Otherwise expensive lock and unlock sequences will lower performance making a trap into the system.

After this the sender copies data from private memory of the sending process directly into private memory of the receiving process. As further optimization the sender may decide to use the DMA engine to copy data without further CPU intervention. This decision will be typically based on the message size. 6 State of the project November 1999 We developed our own FPGA based PCI SCI card and have prototypes of this card already running. At the moment they only o er a so called Manual Packet Mode for now that is intended for sideband communication besides the regular programmed IO and DMA transfers.

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Parallel and Distributed Processing: 15 IPDPS 2000 Workshops Cancun, Mexico, May 1–5, 2000 Proceedings by Jose Rolim

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