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Yes I would! These things tend to get presented as needing an instant answer! Brian -----Original Message----- From: Starlink development [mailto:[log in to unmask]] On Behalf Of Tim Jenness Sent: 21 July 2010 20:35 To: [log in to unmask] Subject: Re: Terabyte HDS scratch Surely Brian would know how to close and reopen the temp file system? Does hdsShow list many long lived temp files? I wonder why they never get cleaned up. On Jul 21, 2010, at 5:47 AM, Malcolm J. Currie wrote: >> Sorry Malcolm, you're in uncharted territory as far as I am concerned. >> Some experimentation required I think. > > If we had an up-to-date internals manual for HDS I might know where to start looking. As I said to Brian, I'm quite happy to answer some of the questions empirically, if I knew how to access the top-level locator for a monolith's scratch container file. > > I could create a temporary file near the start of the monolith routine, get its locator, CALL DAT_PAREN, annul the workspace, and then at the end of the monolith call HDS_ERASE on the parent locator. OK, let's try that. If this or some variant works, we should consider including in the Fixed Part. > > Malcolm -- Tim Jenness Joint Astronomy Centre