"Unknown pragma ivdep and pragma vector" errors when compiling on BlueGene

From: Joshua D. Moore (jdmoore_at_unity.ncsu.edu)
Date: Thu Feb 01 2007 - 23:29:59 CST

I am getting "An unknown "pragma ivdep" is specified" on BlueGene when
trying to compile out of ComputeNonbondedBase2.h and ComputeNonbondedBase.h.

I am also getting "An unknown "pragma vector" is specified" out of

The first pragma vector message doesn't seems to stop the compiling, but the
last messages with pragma ivdep do.

Main question: Is this an error with the compiler? All I could find
suggested that these pragma's (ivdep and vector) were very good to introduce
to the IBM Bluegene compilers.

I was going to comment this out of the source as I think it is optimization,
but it seems like this would be a very bad thing to do with NAMD.

Currently SDSC's compile of NAMD seems kind of slow, so I was hoping to
compile it myself to see if I could get any improvement. Maybe they took
these lines out so that it would compile?


Joshua Moore

This archive was generated by hypermail 2.1.6 : Wed Feb 29 2012 - 15:44:21 CST