( ESNUG 211 Item 3 ) ---------------------------------------------- [3/2/95]
From: dreed@vnet.ibm.com (Dan Reed)
Subject: VSS (VHDL) Compiled Engine Problems on IBM RS6000's
Hi John,
Ever since Synopsys came out with the compiled VSS engine, we have been
struggling to get the darn thing to work. We have no problem with the older
interpreted engine (-fi_all is our workaround). We have a STAR open with
Synopsys, but the testcases I send them work fine at Synopsys, so they have
been unable to duplicate the problem.
Are there other VSS users out there that have compiled engine problems on an
RS6000? By problem I mean "vhdldbx" or "vhdlsim" takes an especially long
time during elaboration, then it crashes with a message like this:
dump: ...../WORK/rs6000/libCsa023840.so.1.0:
dump: 0654-106 Cannot open the specified file.
**Internal Error: vhdlsim: Please report (Can not link shared object file).
Smaller pieces of our design will work OK compiled, but larger ones do not.
I have tried lots of things (NFS vs. /afs, the STAR 20116 workarounds) and I
have sent my FAE my vhdl.uof and environment data, but they see nothing
unusual. I'd really like to get our Synopsys simulations going as fast as
our (now Mentor) Model Tech ones do, but no luck so far. Other than
switching more licenses to Mentor/Model Tech, any ideas?
- Dan Reed
IBM Microelectronics
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