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- Newsgroups: comp.parallel
- Path: sparky!uunet!gatech!hubcap!fpst
- From: gkwan@balboa.eng.uci.edu (Greg Kwan)
- Subject: Determining physical nodes on Intel iPSC/2?
- Message-ID: <1992Sep9.122200.993@hubcap.clemson.edu>
- Sender: fpst@hubcap.clemson.edu (Steve Stevenson)
- Nntp-Posting-Host: balboa.eng.uci.edu
- Organization: University of California, Irvine
- Date: 9 Sep 92 04:58:51 GMT
- Approved: parallel@hubcap.clemson.edu
- Lines: 23
-
-
- Does anyone know of a way to determine on which physical node a
- process is running on the iPSC/2? Intel gave an undocumented/
- unsupported call, but it returns unexpected values. For example,
- when allocating a 16 node cube, it returned:
- node 0 = 512, node 1 = 513, node 2 = 516, node 3 = 517,
- node 4 = 520, node 5 = 521, node 6 = 524, node 7 = 525,
- node 8 = 528, node 9 = 529, node 10 = 532, node 11 = 533,
- node 12 = 536, node 13 = 537, node 14 = 540, node 15 = 541.
-
- Are these just offset by the number 512? Currently, our cube
- only has 30 nodes (2 compute nodes are defective), but it
- appears that the intermediate physical locations would be
- present in a fully allocated (32 node) cube. To put it an-
- other way, how would one determine how many links a message
- passes through from one node to another?
-
- Thanks for any help.
-
- greg
-
- gkwan@balboa.eng.uci.edu
-
-