MVAPICH/MVAPICH2 Project
MVAPICH: MPI over InfiniBand, 10GigE/iWARP and RDMAoE
Network-Based Computing Laboratory
Department of Computer Science and Engineering
Ohio State University



EM64T | InterNode | Performance | Network-Based Computing Laboratory

Performance Numbers of MVAPICH on em64t Platform (11/14/08)

  • Experimental Testbed: Each node of our testbed has a dual processor (2.33 GHz quad-core) and 6 GB main memory. The CPUs support the EM64T technology and run in 64 bit mode. The nodes support 8x PCI Express interfaces and are equipped with Mellanox ConnectX HCAs with PCI Express interfaces. A Flextronics 144-port DDR switch is used to connect all the nodes. The operating system used was RedHat Enterprise Linux Server 5.
  • MVAPICH currently delivers one-way latency of 1.64 microseconds for 4 bytes, unidirectional bandwidth upto 1553 Million Bytes/sec and bidirectional bandwidth upto 2993 Million Bytes/sec on the above testbed. (1 Mega Byte = 1,048,576 Bytes; 1 Million Byte = 1,000,000 Bytes)