OMP function call error

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OMP function call error

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I am trying to use the functions

OMP_GET_MAX_THREADS()
OMP_GET_NUM_PROCS()

using the intel fortran compiler 8.1.023
on a SGI Altix 3700 with 64 processors
running linux
jobs are submitted with NCPUS=x and this
sets the enviroment variable
OMP_NUM_THREADS=x

when these functions are called from a serial
region of the code they give erroneous
results, e.g.
OMP_GET_MAX_THREADS() always returns 1 even when NCPUS>1
OMP_GET_NUM_PROCS() returns 1 or sometimes 4

how are these functions determined
and is this a compiler error ?

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