Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!ames!elroy!usc!neuro.usc.edu!annala
From: annala@neuro.usc.edu (A J Annala)
Newsgroups: comp.windows.x
Subject: Re: running X11 clients from SDSC
Message-ID: <17624@usc.edu>
Date: 5 Jun 89 05:55:55 GMT
References: <3825@sdsu.UUCP> <8906041702.AA17360@wj.msc.umn.edu>
Sender: news@usc.edu
Reply-To: annala@neuro.usc.edu (A J Annala)
Organization: University of Southern California, Los Angeles, CA
Lines: 19

In article <8906041702.AA17360@wj.msc.umn.edu> ken@UF.MSC.UMN.EDU writes:
>> I have heard rumors that the Cray at SDSC supports some version of X11.
>
>Cray Research supports X windows under Unicos (Cray unix).  
>With Unicos 5.0 (released last month) X11R3 is supported.
>
An X11R2 library was just installed at SDSC.  However, the SDSC Cray X-MP/48 
is running CTSS not UNICOS.  As a consequence, I have encountered a few small
problems porting X11 clients to the current SDSC Cray configuration.  As one
example, it would appear that communication protocol restrictions preclude the
building a new 256 pseudocolormap in one call.  You have to split up the call
into several smaller partial pseudocolormap transfers.  Better support will be
available when SDSC finishes testing UNICOS and releases it for general use
late this year/early next year.  Until that time, applications developed from
scratch on the cray will probably run ok.  But attempts to port applications
from other environments may be expected to encounter many small problems.

p.s.  The protocol employed by the X11R3 (SUN) server appears to be completely
      compatible with the X11R2 (Cray) library.