Studi Kinerja Parallel Virtual Machines pada Jaringan Komputer Berbasis Linux
Abstract: PVM (Parallel
Virtual Machines) is a software that able to utilize computer network as
parallel multicomputer.This study is aimed to reveal the performance of PVM in
computer network, especially data communicationperformance and computation
performance. This studi used matrix multiplication to provide computationalloads
to the PVM system, with varied matrix sizes, i.e. 12x12, 40x40, 80x80, 120x120,
240x240 and 360x360. The study found that PVM could use the Ethernet network
bandwidth until 720KB per second or 58% out of the bandwidth capacity 10Mbps.
Latency time counted 3846 microsecond, multicast data transfer rate was 227.575byte
per second, cross communication data transfer rate was 155.253 byte per second,
simultaneous datatransfer rate was 10.095 byte per second. Meanwhile, the
performance test with matrix multiplication yielded speedup when the matrix
size was 200x200 and up. With 4 PCs paralleled, the best speedup was 3.55 times
for matrix size 360x360. This speedup was 88.9 percent compared to ideal
speedup (4 times). This happend due to a portion of the time used for inter PCs
communications. The C/C ratio was reduced (better) for matrix size 200x200 and
up.
Penulis: WINARNO
Kode Jurnal: jptkomputerdd080039
