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- PVPROMOD
- Virtual Memory Utility for PVPRO
- ------------------------------------------------------------------------------
-
-
- This file contains a utility program for PVPRO. It's purpose is to expand
- (or reduce) the amount of memory available to PVPRO during it's operation.
- The "region size" consists of the physical RAM *PLUS* the amount of disk
- space allocated to a swapfile for PVPRO. As posted on CIS PVPRO will
- render approx. a 15,000 triangle file. (Supports 4Megs of memory. In a
- machine with less than 4megs of RAM the VMM may be used to raise it to
- that amount. In a machine with *more* than 4megs of RAM it will go ahead and
- use it.) To expand the virtual memory available more Hard Disk space
- must be allocated to PVPRO. PVPROMOD will list the amount of physical RAM
- available in the machine PLUS the free space on the hard disk. Any or all of
- this can be allocated for PVPRO's use during a trace. Theoreticly this
- can go as high as 4 Gigabytes!
-
- Use of PVPROMOD.
- --------------
- Place PVPROMOD in the same directory as PVPRO. From the command
- line type:
-
- PVPROMOD PVPRO
-
- The program will run and present a list of the current parameters that
- PVPRO operates under. The number in the upper right corner of the table
- (The one labeled "Region Size:") is the amount of memory (Both virtual
- and physical combined AT THAT TIME.) that PVPRO can use.
- Press the (M)odify key to change the parameters. You can then manualy
- enter the amount of memory you want the program to use although it is
- suggested you use the (A)ccept key to use the recommendations of PVPROMOD.
- ( *** Remember you need enough free disk space to write out your image
- file as it is created though!!! *** ) For a 32,000 triangle image you need
- about 6000K of memory available. The PVPRO executable file will then be
- modified to reflect your choices. Since much of this "memory" is usually
- a swap file on your hard disk you will get much better performance with
- a recently de-fragmented disk. The program will NOT allow you to allocate
- a larger region size than can be created AT THAT TIME. I.E. if you have
- 6 Megs of combined RAM/Hard Disk space avail. you cannot make the region
- size any larger than that. Also if the region size is set to a particular
- amount and your hard disk is later filled to the point that the free
- disk space is not large enough for the required swap file to be created,
- the program will *NOT* run. It will error with an insufficient memory
- message. You will need to modify the region size to accomodate the smaller
- amount of disk space avail.
-
- An environment variable is used to "point" to the location of the swap
- file. The DEFAULT swap file is C:\XMSWAP.TMP. To set it to another
- location the following must be added to your AUTOEXEC.BAT file:
-
- SET SWAP=d:\[subdir]\XMSWAP.TMP
-
- Where d: is the drive and [subdir] is the subdirectory you wish to use
- for the swapfile. You will need to reboot the machine for this parameter
- to take effect.
-
- (Note: The test triangle files reffered to were generated with FRGEN 1.1.)
-
-
- Bill Pulver CIS: 70405,1152
- 9/8/91
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