	The project

	Tests & measurements

	Installation

	Usage

	Download

Testbeds

Cluster 1

CPU : 2 AMD Athlon(tm) MP 1600+ 1,4 GHz 256 Kb cache size
RAM : 512 MB
Network cards : Intel Ethernet Pro 100 FE card (the VIA device) 3Com Corporation 3c905C-TX FE card (service network)
Operating system : Red Hat Linux 7.3
Kernel: linux 2.4.18-27.7.xnfsroot
Compiler : gcc 2.96
M-VIA : 1.2 with VIA eepro100 driver

Cluster 2

CPU : Intel PentiumIII, 800 MHz
RAM : 512 MB
Network cards : Level One FNC 0108TX (the VIA device) Level One FNC 0108TX (service network)
Operating system : Red Hat Linux 7.3
Kernel: kernel 2.4.18-10
Compiler : gcc 2.96
M-VIA : 1.2 with VIA tulip driver

Conformance Tests

LAM Test Suite

We run the lam test suite of the 7.1cvsa1 cvs snapshot with up to 8 processes. The VIA-RPI passed all tests except the following:

pt2pt/allocmem
lam/basic/big
lam/basic/big2
pt2pt/send
pt2pt/send2

Actually we don't have an answer why these 5 tests fail. The debug output shows that everything works as expected. All transmissions are done properly but after this the check for the correctness of the received data fails. There are only a few bytes that still are as they were initialized in the receive buffer. The last 3 tests even work with a smaller maximal message size (LAM_MPI_test_small_mem=1).

lamtests/comm/intercomm
dynamic/spawn_multiple
dynamic/spawn
all 5 tests under /lam/dynamic

This test are expected to fail because they create more processes than one on a single node and the VIA-RPI does only support inter-node communication.

Measurements

pingpong on Cluster

pingpong on Cluster 1 - latancy details

Comparison of the VIA RPI and the native M-VIA

Pingpong bandwidth details on Cluster 1

Pingpong on cluster 2

Broadcast details on cluster 1

Broadcast with 4 nodes on cluster 2



Tobias Wenzel 27. Mai 2004	Technische Universität Chemnitz, Straße der Nationen 62, 09107 Chemnitz Impressum - Copyright © 2005 by TU Chemnitz, alle Rechte vorbehalten.	Druckansicht