The MXH570 PCI Express 5.0 NTB Host Adapter is our high performance clustering product. Based on Microchip Switchtec® PCIe 5.0 bridging architecture, the MXH570 host adapter includes features for non-transparent bridging and clock isolation.

For high performance application developers, the MXH570 host adapter provides a system to system throughput starting just above 57 Gigabytes / second and application to application latency around 500 nanoseconds (system dependent). Using the latest SmartIO technology software from Dolphin, GPU / Cuda applications can stream data to remote GPUs at at the same speed as to local GPUs. Advanced DMA features enables fast reliable data transfers.

Dolphin eXpressWare

The MXH570 card comes with a full license to the Dolphin eXpressWare clustering software. This includes

• SISCI API - a robust and powerful shared memory programming environment for PCIe
• Standard TCP/IP drivers
• SuperSockets socket accelerator software
• SmartIO - access to remote PCIe devices over PCIe
• Board management software

Dolphin's software suite takes advantage of DMA and PIO data transfer schemes to effectively support both large and small data transfers. PIO transfers are optimized for small packet transfers at the lowest possible latency. DMA moves data with virtually no CPU consumption. The eXpressWare software is currently available for Linux and Windows.

The overall software framework is designed for rapid development and deployment of inter-processor communication systems. More information about Dolphin eXpressWare clustering software.

Cables

The MXH570 card has one CDFP / CopprLink 1.0 x16 cable connector and is optimized to support long copper and fiber optic cables. More information on cables for the MXH570.

PCIe Surprise Hot-Add

In combination with Dolphin's eXpressWare for Windows or Linux, the MXH570 supports transparent surprise hot-add when connected to a traditional external IO system. This means you don't need to reboot your server to replace IO. More on Dolphins Hot Add. If you don't need Transparent Hot Add, please select the MXH572 PCIe 5.0 Adapter card.

Features

• PCI Express® 5.0 compliant - 32.0 GT/s per lane
• Link compliant with PCIe 1.0, 2.0, 3.0, 4.0 and 5.0
• PCI Express CopprLink cables
• RDMA support through DMA, PIO and System DMA
• Copper &Fiber cables
• Full host Clock isolation support. Automatic support for host running CFC or SSC
• Non-transparent bridging to cabled PCI Express systems
• Low profile PCI Express form factor
• Flash for custom system configuration
• Link status LED through face plate

Active cooling

The MXH570 comes with a passive heat sink for systems having adequate cooling. For open desktop and other environments with limited or hot airflow, and use with fiber optic cables, we recommend the MXH570F having a pre-installed active fan sink. More information on thermal considerations can be found in the MXH570 Users Guide.