The Test Platforms

The experiments were carried out on the following systems

• a dual processor Pentium II with 266 MHz CPU and 256 MB RAM, running Linux (Red Hat 6.0)
• a Sun Ultra 80 with 450 MHz CPU and 2GB RAM, running Solaris 2.6
• an IBM Power3 with 375 MHZ CPU (1.5 Gflops peak) and 1GB RAM, running AIX 4.3.3.0.

The compilers and compilation flags are listed in Table 1.

Table 1: Compilers used

name	note	version	flags
Pentium II
abf90	Absoft F90 compiler	1.01	-O
pgf90	Portland group F90 compiler	3.0-3	-O4
gcc	GNU C compiler	2.95.1	-O5
Java (IBM)	IBM JDK	1.3.0	-O
Java (Sun)	Sun JDK	1.3.0 (beta)	-O
Sun Untra 80
f90	Sun WorkShop F90 compiler	2.0	-fast
cc	Sun WorkShop C compiler	5.0	-fast
Java	Sun	1.3.0 (beta)	-O
IBM Power3
f90	XL Fortran compiler for AIX	7.1.0.0	-O3 -qarch=pwr3 -qtune=pwr3
cc	C for AIX Compiler	4.4.0.0	-O3 -qarch=pwr3 -qtune=pwr3
Java	Java RTE	1.1.8	-O