Comparison of MasPar MP-1 and MP-2 communication operations

Report 01/93 [Pre93] describes the ndings of a series of communication measurements performed on a MasPar MP-1 series MP-1216A machine. The current report covers the same measurements performed on a MP-2 series MP-2216 machine. It compares the results and outlines and discusses the main di erences. In these measurements, raw router communication was sometimes faster, sometimes slower on the MP-2 than on the MP-1, depending on the parameters of the communication requested. The relative performance of the MP-2 varied between 93 % and 120%. Xnet communication was faster in all cases (performance 100 % to 175%). Complex functions from the communication library were also always faster (performance 100 % to 180%). Some of these results contradict technical speci cations for the MP-1 and MP-2 published by MasPar