Topspin/Mellanox Pci-Express Hca; Topspin/Mellanox Sdr Pci-X Hca; Topspin/Mellanox Sdr Pci-Express Hca - HP Cluster Platform Interconnects v2010 User Manual

Figure 8-3 Topspin/Mellanox SDR PCI–X HCA
Features of the Topspin/Mellanox PCI-X HCA include:
• Two 4x InfiniBand 10 Gb/s ports (40 Gb/s InfiniBand bandwidth full duplex – 2 ports x 10
Gb/s/port x 2 for full duplex).
• 64-bit PCI-X v2.2 133Mhz
• 7 Gb/s transfer rates per port
• <6 μm latency
• 128 MB local memory
The LED ports on the Topspin/Mellanox PCI-X HCA blink to indicate traffic on the InfiniBand
link on initial setup. The installation and LEDs of the Topspin cards are similar to that of the
Voltaire HCAs described previously in this chapter.

8.4 Topspin/Mellanox PCI-Express HCA

The Topspin/Mellanox PCI–Express HCA supports InfiniBand protocols including IPoIB, SDP,
SRP, UDAPL and MPI. The Topspin/Mellanox PCI–Express HCA is a single data rate (SDR) card
with two 4X InfiniBand 10 Gb/s ports and 128 MB local memory.
Topspin/Mellanox PCI–Express HCA.
Figure 8-4 Topspin/Mellanox SDR PCI–Express HCA
Features of the Topspin/Mellanox PCI-Express HCA include:
• Two 4x InfiniBand 10 Gb/s ports (up to 40 Gb/s InfiniBand bandwidth full duplex – 2 ports
x 10 Gb/s/port x 2 for full duplex).
• x8 v1.0a PCI-Express (8 serial lanes x 2.5 Gb/s/lane x 2 for full duplex)
• 8 Gb/s transfer rates per port, configuration dependant
• <5 μm latency
• 128 MB local memory
98 Installing and Maintaining HCA Cards and Mezzanines
Figure 8-4 shows a