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来自「最著名最快的分子模拟软件」· 代码 · 共 16 行

This directory contains double-precision Gromacs
loops where the innermost loops have been modulo-scheduled
for the Itanium2 (4 cycle FP latency). For this reason they
should NOT be used on Merced (Itanium1) - they might even
be slower than C code in that case due to all the stalls.

On McKinley they achieve over 90% of the peak floating point
performance of the machine when running real neighborlists
and small size systems. The only reason why it is not 98-100%
is that there are always empty slots in the software pipeline
at the start and end of each inner loop.
If Intel ever increases the FP latencies, the innermost loop 
might need rescheduling.