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Memory management [message #333]

Fri, 12 June 1992 06:14

isaacman
Messages: 20
Registered: June 1992

Junior Member

There seems to be some peculiarity in the way IDL does its memory
management in the TRANSPOSE function. Running on a VAXstation 3100/76,
the following statements cause the process to hang:

IDL> A = FINDGEN(3,200000)
IDL> A = TRANSPOSE(A)

The problem can be made to disappear as the arry size is made smaller,
presumably depending on one's page file quota and so forth. (On our
system, using A = FINDGEN(3,100000) works fine.)

The problem is definitely in IDL and not in the system: when we
LINKIMAGE a functionally-equivalent transpose function written in C, it
works fine with the large array.

Anybody have any ideas about this?

Rich Isaacman
COBE Project
NASA/Goddard Space Flight Center

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By: isaacman on Fri, 12 June 1992 06:14

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