PDA

View Full Version : jwe0912i-u Memory Problems with Dynamic Area


sanjose
04-30-2004, 01:46 AM
Dear all:

I am a registered Lahey FORTRAN v6.0 Express compiler, running
programs on a Red-Hat Linux 9.0 PC with up to 4GB of RAM.
A FORTRAN 90 program containing just only two matrices, with allocated dimension DIM=1290 each, make aroung 2GB total.
Increasing this size a little a runtime error comes out:

jwe0912i-u line 36 The dynamic area cannot be reserved because of insufficient
area. The used size is 01033024KB. The required size is 01033024KB

The Fujitsu runtime error document describes the solution as:
"increase the maximum value of virtual storage or data segment"

I have not such problem with a standard C program doing just the
same, and I can allocate much more memory. Then I guess it is
a problem between Lahey FORTRAN and the standard Red Hat Linux
9.0 kernel?

May anybody give me any remedy on it? Should I recompile the
RedHat 9.0 Linux Kernel? What changes are necessary in order
to allow the use of the 4 GB available?

Many thanks.
José Luis Sanz