44 lines
1.9 KiB
Plaintext
44 lines
1.9 KiB
Plaintext
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IIIII BBBB M M
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I B B MM MM
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I BBBB M M M
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I B B M M
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IIIII BBBB M M
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New Updates and Fixes to IBM/VU
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This is a notification of two patches to IBM/VU (Virtual
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Universe) and a new release designed for users not requiring the full
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capibilities of a virtual universe.
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Several users have reported errors resulting from recursive
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calls to the Universe Creation Utility (UCU). This utility, called
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from IEBSAGAN, is used to initialize the virtual space which will hold
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the universe to be simulated. On occasion, the universe created by
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this routine will contain technologies capable of creating their 'own'
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virtual universe processors, which in turn call on the UCU. While the
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stack structure supporting the UCU was designed with this in mind, no
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system can handle unlimited recursion. Release 134 will contain a
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patch that will request user verification before a new level is
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created.
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Another problem that has been experienced occurs during
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the use of black holes and neutron stars in the virtual universe.
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Although the mass storage media provided with the VU processor is
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of the highest quality, it can not handle storage at such a density.
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The highest density that is supported is 2.32E16 grams/cc. DO NOT
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EXCEED THIS LIMIT. Severe gravitaional effects have serious impact
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on the reliability of the system. V134 will also contain a program
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(IEBFORWARD) that can deal with these problems.
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Due for release in April is IBM/VSS (Virtual Solar System).
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This is designed for the casual user, who does not require the full
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use of a universe. One possible use of this package is to provide
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uniform testing conditions for programs that take input regarding
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the phase of the moon. In addition, it is estimated that the cost of
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simulating the solar system and a Voyager flyby is 1/5 that of
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actually running such a mission.
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IBM Software Division
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