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iWarp protocol kernel space software implementation
2006
Proceedings 20th IEEE International Parallel & Distributed Processing Symposium
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It is for this reason that we have implemented the iWarp protocol in software. This allows a server equipped with an RNIC to exploit its advantages even if the client does not have an RNIC. ...
zero-copy, RDMA, and protocol offload. ...
Why Software iWarp? There are a number of reasons for implementing the iWarp protocol stack in software. ...
doi:10.1109/ipdps.2006.1639565
dblp:conf/ipps/DalessandroDW06
fatcat:dfxrokgpdzgyzn3archot2fprq
Supporting iWARP Compatibility and Features for Regular Network Adapters
2005
Proceedings IEEE International Conference on Cluster Computing
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In this paper, we design and implement a software stack to handle these issues. ...
First, not all network adapters support iWARP; thus, software compatibility for regular network adapters (which have no offloaded protocol stack) with iWARP capable network adapters needs to be achieved ...
Being implemented in user-space and above the sockets layer, this implementation is very portable across various hardware and software platforms 2 . ...
doi:10.1109/clustr.2005.347032
dblp:conf/cluster/BalajiJVP05
fatcat:7ldwrqlgxnbxxo6kb5uq2ogp24
Implementation and Evaluation of iSCSI over RDMA
2008
2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os
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This involved a three step process: moving UNH-iSCSI software from the Linux kernel to user-space, adding support for the iSER extensions to the user-space iSCSI, and finally moving everything back into ...
the Linux kernel. ...
Implementation In order to compare iSER-assisted and traditional software iSCSI implementations, we first needed to build a working iSCSI-iSER-iWARP stack. ...
doi:10.1109/snapi.2008.12
fatcat:bvfd6fkobrcqfmry5knkmvvkky
iWARP redefined: Scalable connectionless communication over high-speed Ethernet
2010
2010 International Conference on High Performance Computing
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We present our software implementation of datagram-iWARP over UDP and MPI over datagram-iWARP. ...
iWARP represents the leading edge of high performance Ethernet technologies. ...
RELATED WORK The implementation of the current iWARP standard in software, originated from a project by OSC [22] that provides both user-space [6] and kernel space [7] implementations. ...
doi:10.1109/hipc.2010.5713192
dblp:conf/hipc/RashtiGAB10
fatcat:3ioiy6tcbbcyhfi36jdpmqbwfq
Designing next generation clusters with InfiniBand and 10GE/iWARP: Opportunities and challenges
2008
2008 IEEE International Conference on Cluster Computing
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Tools
Hardware
Provider
Mid-Layer
Upper
Layer
Protocol
User
APIs
Kernel Space
User Space
NFS-RDMA
RPC
Cluster
File Sys
Application
Level
SMA
Clustered
DB Access
Sockets ...
Offloaded IP
Offloaded iWARP
iWARP compliant
Adapters
Application
Kernel-level
iWARP
TCP (Modified with MPA)
IP
Device Driver
Network Adapter
Sockets
Application
User-level iWARP ...
doi:10.1109/clustr.2008.4663772
dblp:conf/cluster/Panda08
fatcat:o7ctwnmnvreg5g6m2v2fwdzaj4
Design and testbed evaluation of RDMA-based middleware for high-performance data transfer applications
2013
Journal of Systems and Software
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We provide a reference implementation of the popular file-transfer protocol over this RDMA-based middleware layer, called RFTP. ...
For networks without RDMA hardware acceleration, we integrate Linux kernel optimization techniques to reduce data copy and processing in the middleware. ...
The Direct Data Placement (DDP) layer of the iWARP stack implements the zero-copy and kernel-bypass, and transfers data in user-space buffer directly to remote application memory. ...
doi:10.1016/j.jss.2013.01.070
fatcat:suqi7ayvtjeidox4e6u7kfztuy
Energy-efficient data transfers in radio astronomy with software UDP RDMA
2018
Future generations computer systems
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2017 pre-print arXiv:1703.07626v1 fatcat:2ooydzlxsnhklbgbdyd4nvpuda
We have implemented a fully functional software prototype of such a protocol, supporting RDMA Read and Write operations and zero-copy capabilities. ...
We present measurements of power consumption and achieved bandwidth and investigate the behaviour of all examined protocols when subjected to packet loss. ...
Soft-iWARP comprises two main building blocks: a kernel module, which implements the iWARP protocols on top of TCP kernel sockets, and a user level library. ...
doi:10.1016/j.future.2017.03.027
fatcat:gxrsheb6ufhtdmwetomx3kgwru
RDMA Capable iWARP over Datagrams
2011
2011 IEEE International Parallel & Distributed Processing Symposium
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We demonstrate through a proof-of-concept software implementation that datagram-iWARP is feasible for real-world applications. ...
The ability to use datagrams significantly expands the application space serviced by iWARP and can bring the scalability advantages of a connectionless transport to iWARP. ...
The implementation of the current iWARP standard in software, originated from a project by OSC [18] that provides both user-space [5] and kernel space [6] implementations. ...
doi:10.1109/ipdps.2011.66
dblp:conf/ipps/GrantRAB11
fatcat:hulf47ynwzhr7jhq5lc5dslx3a
Scalable connectionless RDMA over unreliable datagrams
2015
Parallel Computing
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The overhead imposed by connection-based protocols for high-performance computing (HPC) systems can be detrimental to system resource usage and performance. ...
The results show that both models outperform their connection-based alternatives, providing superior performance and scalability in a software prototype. ...
The OSC iWARP project implements both user-space [7] and kernel-space [8] implementations of iWARP, with the user-space version being used for datagram-iWARP. ...
doi:10.1016/j.parco.2015.03.009
fatcat:tyo4axikujenxhpwelevfuwyqa
10-Gigabit iWARP Ethernet: Comparative Performance Analysis with InfiniBand and Myrinet-10G
2007
2007 IEEE International Parallel and Distributed Processing Symposium
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existing Ethernet infrastructure and protocols. ...
The results show that the NetEffect iWARP implementation achieves an unprecedented latency for Ethernet, and saturates 87% of the available bandwidth. It also scales better with multiple connections. ...
Special thanks go to Vadim Makhervaks, Brian Hausauer and Terry Hulett of NetEffect for providing technical details about the NetEffect iWARP implementation. ...
doi:10.1109/ipdps.2007.370480
dblp:conf/ipps/RashtiA07
fatcat:fznac5yc3bchvn5on7tppbzofa
Analyzing the impact of supporting out-of-order communication on in-order performance with iWARP
2007
Proceedings of the 2007 ACM/IEEE conference on Supercomputing - SC '07
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While modern networking stacks such as the Internet Wide-Area RDMA Protocol (iWARP) over 10-Gigabit Ethernet (10GE) support multi-path communication, their current implementations do not handle out-of-order ...
Specifically, in iWARP, supporting out-of-order packets requires every packet to carry additional information causing significant overhead on packets that arrive in-order. ...
There exist two designs for host-based iWARP, one in user-space and one in kernel-space. The user-space design builds the iWARP stack on top of TCP/IP sockets. ...
doi:10.1145/1362622.1362670
dblp:conf/sc/BalajiFBPTG07
fatcat:5xkrd6yzn5ckhdvd4i77qcqfma
Sockets Direct Protocol for Hybrid Network Stacks: A Case Study with iWARP over 10G Ethernet
[chapter]
2008
Lecture Notes in Computer Science
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In this paper, we propose an enhanced design for SDP that allows network stacks to specify components implemented in hardware and software, and uses this information to optimize its execution. ...
Consequently, protocol stacks such as iWARP and MX for 10-Gigabit Ethernet and QLogic InfiniBand, utilize hybrid hardwaresoftware designs that take advantage of the processing power of multicore processors ...
Hybrid Hardware-Software iWARP Stack Several different implementations of iWARP exist, including complete software implementations [9, 21] , complete hardware implementations [19] and hybrid hardware-software ...
doi:10.1007/978-3-540-89894-8_42
fatcat:h57mrl3fgfctvgoukvjn43yche
Memory Management Strategies for Data Serving with RDMA
2007
15th Annual IEEE Symposium on High-Performance Interconnects (HOTI 2007)
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Ordinary sockets-based networks can achieve higher performance by using the "sendfile" mechanism to avoid copying file data into user-space buffers. ...
In order to access file data and send it over the network, an application must copy it to user-space buffers, and the operating system must register those buffers with the network adapter. ...
For software, we have coded a test driver that uses either our in-kernel RDMA sendfile implementation, or our pipelined user-space RDMA sendfile implementation. ...
doi:10.1109/hoti.2007.5
dblp:conf/hoti/DalessandroW07
fatcat:bqi4z77zzfdepg3km66fffzxp4
A comprehensive zero-copy architecture for high performance distributed data acquisition over advanced network technologies for the CMS experiment
2012
2012 18th IEEE-NPSS Real Time Conference
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protocol facilitates deployment of several network technologies like Gigabit Ethernet, Myrinet, Infiniband etc. ...
protocol facilitates deployment of several network technologies like Gigabit Ethernet, Myrinet, Infiniband etc. ...
The OFED is the software on the host that coordinates user-space and kernel-space access to the Infiniband or Ethernet hardware. ...
doi:10.1109/rtc.2012.6418171
fatcat:wly4dhtolbanljgt5cweeiwayi
A Hybrid MPI design using SCTP and iWARP
2008
Proceedings, International Parallel and Distributed Processing Symposium (IPDPS)
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We are not aware of any other software implementations of iWARP over SCTP, nor MPI middleware that uses both iWARP verbs and the SCTP API. ...
MPI middleware implementations typically use one or the other, however, the appearance of the Internet Wide Area RDMA Protocol (iWARP), RDMA over IP, and protocol off-load devices introduces the opportunity ...
We based our software iWARP implementation on the user-level version of the OSC-iWARP stack. ...
doi:10.1109/ipdps.2008.4536144
dblp:conf/ipps/TsaiPW08
fatcat:lpxltvjr5ze7pclxpt73fq5w3u
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