Synchronized send operations for efficient streaming block I/O over myrinet

Koukis, E; Nanos, A; Koziris, N

dc.contributor.author	Koukis, E	en
dc.contributor.author	Nanos, A	en
dc.contributor.author	Koziris, N	en
dc.date.accessioned	2014-03-01T02:45:48Z
dc.date.available	2014-03-01T02:45:48Z
dc.date.issued	2008	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32400
dc.subject	Cost Effectiveness	en
dc.subject.other	Main memories	en
dc.subject.other	Myrinet	en
dc.subject.other	Parallel and distributed processing	en
dc.subject.other	Computer networks	en
dc.subject.other	Cost effectiveness	en
dc.subject.other	Distributed parameter networks	en
dc.subject.other	Firmware	en
dc.subject.other	Data storage equipment	en
dc.title	Synchronized send operations for efficient streaming block I/O over myrinet	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/IPDPS.2008.4536142	en
heal.identifier.secondary	4536142	en
heal.identifier.secondary	http://dx.doi.org/10.1109/IPDPS.2008.4536142	en
heal.publicationDate	2008	en
heal.abstract	Providing scalable clustered storage in a cost-effective way depends on the availability of an efficient network block device (nbd) layer. We study the performance of gmblock, an nbd server over Myrinet utilizing a direct disk-to-NIC data path which bypasses the CPU and main memory bus. To overcome the architectural limitation of a low number of outstanding requests, we focus on overlapping read and network I/O for a single request, in order to improve throughput. To this end, we introduce the concept of synchronized send operations and present an implementation on Myrinet/GM, based on custom modifications to the NIC firmware and associated userspace library. Compared to a network block sharing system over standard GM and the base version of gmblock, our enhanced implementation supporting synchronized sends delivers 81% and 44% higher throughput for streaming block I/O, respectively. ©2008 IEEE.	en
heal.journalName	IPDPS Miami 2008 - Proceedings of the 22nd IEEE International Parallel and Distributed Processing Symposium, Program and CD-ROM	en
dc.identifier.doi	10.1109/IPDPS.2008.4536142	en