Home Enterprise IBTA Specification Volume 1 Release 1.5 Now Available

IBTA Specification Volume 1 Release 1.5 Now Available

by Lyle Smith
IBTA Specification Volume 1 Release 1.5

The InfiniBand Trade Association (IBTA) has announced the availability of IBTA Specification Volume 1 Release 1.5. Highlighted by its support for MPE, the new release will bring a range of benefits including improved latency in PMEM applications used in high-performance, enterprise, and cloud data centers.

The InfiniBand Trade Association (IBTA) has announced the availability of IBTA Specification Volume 1 Release 1.5. Highlighted by its support for MPE (or Memory Placement Extensions), the new release will bring a range of benefits including improved latency in PMEM applications used in high-performance, enterprise, and cloud data centers.

 IBTA Specification Volume 1 Release 1.5

The newest version of IBTA Specification Volume 1 also features support for higher bandwidth NDR InfiniBand and minimum bandwidth setting capabilities via the Enhanced Port Arbiter.

Here’s a rundown of the key features of Release 1.5 from InfiniBand Trade Association:

  • Memory Placement Extensions enable hardware OEMs and software developers to implement the MPE operations RDMA Flush and RDMA Atomic Write to enhance PMEM performance and reduce overall latency by a factor of 10.
  • InfiniBand now supports NDR, which allows 400 Gbps speeds on a 4-lane port configuration.
    • It also supports 2x lanes for much greater port density while still supporting 200 Gbps on these ports.
  • Quality of Service has been enhanced via an updated VL Arbitration mechanism which allows a user to specify minimum bandwidth on physical ports and the ability to control virtualized port arbitration by setting rate liming and bandwidth sharing.

Availability

IBTA Specification Volume 1 Release 1.5 is available now.

IBTA Specification

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