OFED 1.4 Plans

1
OFED 1.4 Plans

• April 2008
• Tziporet Koren

2
Agenda

• Release Features
• OS Matrix
• Schedule and Procedure Enhancements

3
Release Features - Kernel

• Kernel base 2.6.27
• Will start with 2.6.25 and rebase as kernel
  progress
• Multiple EQs to best fit multi-core systems
• Multi-Protocol support for low level drivers
• E.g. ConnectX can support Eth and IB
  simultaneously
• RDMA CM to support IPv6?
• Reduce amount of changes between kernel.org and
  OFED kernel

4
New Components

• NFS-RDMA
• Xsigo's host drivers Virtual NIC and HBA
• iSER target

5
New Verbs

• New iWARP Verbs (some applicable to IB)
• Allocate L_Key/STag.
• "Fast register" memory through send queue
• Local invalidate send work requests,
• Read with invalidate
• peer-2-peer support in IWCM/Drivers
• New IB verbs
• Reliable multicast

6
ULPs

• IPoIB - More performance improvements
• LRO
• RSS
• RDS
• GA with RDMA API
• New atomic operations
• SDP
• RDMA zero copy
• uDAPL
• Interop between Linux and Windows

7
Management OpenSM

• Incremental routing for fast routing when one
  switch fails
• Shadow SA DB to answer queries during a heavy
  sweep
• APM - disjoint paths
• MKey manager
• MGID to MLID compression
• Path balancing for LMC console diagnostics
• OpenSM configuration unification
• MGID compression (MGID to NLID mapping)
• Routing engines chain
• IBA 1.2.1 additions
• Failover/Handover improvements

8
Management cont.

• Diagnostic tools
• ibnetdiscover library - accelerate another tools
• Congestion Control

9
MPI New Features

• MVAPICH 1.1
• XRC support
• Hybrid UD-XRC support
• Enhanced Asynchronous Progress
• Network Reliability
• Enhanced collectives
• MVAPICH2 1.1
• Scalable Job startup
• One-sided Operations with Passive Synchronization
• Checkpoint-Restart with Shared Memory Support
• Multi-core optimized Collectives
• PLPA Support for affinity

10
MPI New Features Cont.

• Open MPI version 1.3
• Connection Manager support
• IB CM, RDMA CM
• XRC support
• APM support
• Message coalescing
• BSRQ (including XRC integration)
• iWARP verbs support
• Open Grid Computing / Chelsio
• Major job launch scalability improvements
• Tighter integration with parallel tools

11
OFED 1.4 OS Matrix

• kernel.org kernel 2.6.26 and 2.6.27
• Start compilation checks from 2.6.16
• Novell
• SLES 10
• SLES 10 SP1 (up1)
• SLES 10 SP2
• Redhat
• RHEL 4 (up5, up6, up7)
• RHEL 5 (up1, up2)
• OEL
• OEL 5
• Free distros
• Open SuSE 10.3
• Fedora C8

12
Procedure Enhancements

• We will continue with the OFED process
• Was presented in SC07http//www.openfabrics.org/a
  rchives/nov2007sc.htm
• Will follow any decision from the development
  session
• Userspace Tarball based distribution
• git will be used for development and daily build
• Tarballs will be used for releases
• Details will be published in the coming weeks

13
OFED 1.4 Schedule

• Release Oct 06, 2008
• Features freeze Jun 25, 08
• kernel 2.6.26 based
• Alpha Jul 9, 08
• Beta Jul 30, 08
• kernel 2.6.27-rcX (assuming it will be available)
• RC1 Aug 13, 08
• RC2 Aug 27, 08
• RC3-RC5/6 every 5-10 days
• Latest RC to be used in OFA interop event
• GA Oct 06 08

14
When to Start Development

• Now ?
• New kernel master tree based on 2.6.25
• Should be ready next week
• User space Development should be done using the
  master git tree of each package

15

• Thank You