xlf90 malloc problem
From: Chris (c5150f_at_yahoo.com)
Date: 07/28/04
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Date: 28 Jul 2004 11:05:14 -0700
I hope this post is located in the correct group, if not I apologize
in advance.
I'm trying to compile a code on a Mac-(G5, OS X 10.3 Panther) using
xlf90 (IBM XL Fortran 8.1). The code uses BLAS/LAPACK extensively and
I've attempted linking with both the vecLib Framework and compiling my
own libraries both yielding the same result. The problem appears to be
related to the call of malloc or malloc_create_zone.
I've compiled smaller test codes in an effort to hunt down the problem
but gdb prints the error message
"Program received signal EXC_BAD_ACCESS, Could not access memory.
0x9001f654 in malloc_create_zone ()"
for anything I try using any set of linked libraries. I've set
breakpoints at the earliest stages of the code with no success. To get
the code to compile, I must link with the System.B, and crt1.o OS X
libraries.
I've also tried compiling a very simple code (shown below) pulled off
of lang.fortran that uses ALLOCATE/DEALLOCATE with no problems.
Any help or suggestion would certainly be appreciated.
-Chris
------------code below------------
PROGRAM testmem2
REAL, ALLOCATABLE :: A(:,:)
integer i,e,j
print *,'Press a numeric key & enter to start'
read *,e
allocate (A(10000,10000))
do 100 i=1, 10000, 1
do 200 j=1, 10000, 1
a(i,j)=4
200 continue
100 continue
print *,'Press a numeric key & enter to deallocate'
read *, e
deallocate(A, STAT=e)
print *, 'Error',e
call sleep(5)
END PROGRAM testmem2
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