The design of Open-MX is described in several papers. According to Myricom, Views Read Edit View history. It shows that adding Open-MX protocol knowledge in the NIC firmware and combining it with multiqueue capabilities improves performance by enhancing the cache-efficiency from the NIC up to the application. Machines are connected via low-overhead routers and switches , as opposed to connecting one machine directly to another. For supercomputing, the low latency of Myrinet is even more important than its throughput performance, since, according to Amdahl’s law , a high-performance parallel system tends to be bottlenecked by its slowest sequential process, which in all but the most embarrassingly parallel supercomputer workloads is often the latency of message transmission across the network.
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MyriG started shipping at the end of Get the latest Open-MX news by subscribing to the open-mx-announce mailing list. Although it can be used as a traditional networking system, Myrinet is often used directly by programs that “know” about it, thereby bypassing a call into the operating system.
See also the news archive. Myrinet was promoted as having lower protocol overhead than standards such as Ethernetand therefore better throughputless interference, and lower latency while using the host CPU. Summary Open-MX is a high-performance implementation of the Myrinet Intervonnect message-passing stack over generic Ethernet networks. Extended revision of the Euro-Par paper, discussing cache-affinity-related problems in the Open-MX receive stack and improving performance by enhancing the cache-efficiency from the NIC up to the application.
Myrinet – Wikipedia
Please help improve this article by adding citations interconnecct reliable sources. For instance, if you replace the 2. If you are looking for general-purpose Open-MX citations, please use this one. September Learn how and when to remove this template message.
For additional discussions regarding the Open-MX development, see also the open-mx-devel mailing list but be aware that open-mx-announce is the only way to be informed about important news and releases. This paper describes the initial design and performance of Open-MX stack. The design of Open-MX is described in several papers. For configuration details, see the headers of the corresponding output file.
Myrinet Express over Generic Ethernet Hardware
It provides application-level with wire-protocol compatibility with the native MXoE Myrinet Express over Ethernet stack. Myrinet includes a number of fault-tolerance features, mostly backed by the switches. Retrieved September 1, This page was last edited on 13 Decemberat Bug reports and questions should be sent on the project tracker or kyrinet the open-mx-devel mailing list.
It shows that adding Open-MX protocol knowledge in the NIC firmware and combining it with multiqueue capabilities improves performance by enhancing the cache-efficiency from the NIC up to the application. This paper discussed cache-affinity-related problems in the Open-MX receive stack.
This paper describes an innovative memory myronet optimization in Open-MX based on pinning pages on-demand, overlapping this process with the communication, and decoupling it from user-space so as to implement a safe pinning cache using the kernel MMU-Notifier framework.
Open-MX development resources are maintained on the Inria Gforge server. See the Open-MX project homepage.
This paper discuss how to add basic support for Open-MX-aware coalescing in regular NIC so as to achieve optimal latency without disturbing message rate or increasing the host load. Unsourced material may be challenged and removed. Support for Linux kernel starting with 2. From Wikipedia, the free encyclopedia. Machines are connected via low-overhead routers and switchesas opposed to connecting one machine directly to another.
Views Read Edit View history. These include interconenct control, error control, and “heartbeat” monitoring on every link.