The MXH830 Gen3 PCI Express NTB Host Adapter is our high performance clustering product. Based on Microsemi Switchtec® Gen3 PCI Express bridging architecture, the MXH830 host adapter includes advanced features for non-transparent bridging (NTB) and clock isolation.
For high performance application developers, the MXH830 host adapter combines 128 Gbit/s performance with an application to application latency starting just above 500 nanoseconds. Inter-processor communication benefits from the high throughput and low latency. Using the latest SmartIO technology software from Dolphin, GPU / Cuda applications can now stream data to remote GPUs at at the same speed as to local GPUs.
The MXH830 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 System DMA (RDMA) and PIO data transfer scheme to effectively supporting both large and small data packets. PIO transfers optimize small packet transfers at the lowest latency. The eXpressWare software is currently available for Linux, Windows and VxWorks.
The overall software framework is designed for rapid development and deployment of inter-processor communication systems. More information about Dolphin eXpressWare clustering software.
The MXH830 card has a quad SFF-8644 cable connector and supports MiniSAS-HD cables as well as the new PCIe 3.0 cables. The MXH830 is carefully designed for maximum cable lengths. Fiber optics extends this distance to 100 meters. More info on cable alternatives for the MXH830 card.
The MXH830 can be used to create several types of PCIe networks:
- A two node network can be realized using 4 cables. Full x16 performance between the two systems.
- A three node network can be realized using 2 cables between each system. Full x8 performance between the three systems.
- Larger configurations can be realized with one or more of the MXS824 24 port Gen3 switch.
The MXH832 Gen3 Adapter card is ideal for Transparent PCIe IO Expansion applications.
- PCI Express® 3.1 compliant - 8.0 Gbps per lane
- Link compliant with Gen1 and Gen2 PCI Express
- PCI Express 3.0 or MiniSAS-HD® cables
- Quad SFF-8644 x4 Gen3 PCI Express NTB cable ports that can be configured as:
- One - x16 PCI Express port
- Two - x8 PCI Express ports
- Four - x4 PCI Express ports
- RDMA support through PIO and System DMA
- Copper and fiber-optic cable connectors
- 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
- EEPROM for custom system configuration
- Link status LEDs through face plate
Please note the MXH830 specification is preliminary and can change without notice. Please contact Dolphin for details and availability.