Barco Eos, Руководство пользователя

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6. Advanced configuration
Barco – Eos Workstation for Windows – DOC-3062-2 – Revision 12 – August-2004
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6-20
As default the O
VER
V
IEW
projection cubes and graphic channels are assigned in columns from top to bottom start-
ing with the left column as shown in Figure 3-51 . This assignment may be changed for some reason. E. g., it may
be advantageous to change the order thus, that the channels are assigned in rows instead of columns as shown
in
Figure 3-52 . The following table lists some examples:
arrangement
x×y Assigning cubes and channels in columns Assigning cubes and channels in rows
4×1
00010203 00010203
2×2
00010203 00020103
3×2
000102030405 000301040205
2×3
000102030405 000204010305
4×2
0001020304050607 0004010502060307
Table 6-18
Please, refer to section 3.5.3 Configuring the display wall for more details.
MappingCache
The amount of memory available for PCI mapping cache is stored in the
MappingCache
in the registry.
Name
MappingCache
Typ DWORD
Values
4..64
Default
64
Effective after rebooting
Table 6-19
The value is specified in Megabytes. Each UGX or AGX board requires 16 KB non-shared system space and 16 MB
shareable system space. The shareable 16 MB are made visible to the CPU through the mapping windows re-
served as specified by the MappingCache registry setting.
If other drivers need a lot of system pages or if they are forced to do so by applications there are two possibili-
ties to make the necessary space available.
On the one hand you can change the set value for the system pages to a sufficient large value. The system pages
entry can be found in the registry under the following path:
HKEY-LOCAL-MACHINE
\System
\CurrentControlSet
\Control
\Session Manager
\Memory Management
\SystemPages
The table below lists depending on the operating system a sufficiently large value for the system pages.
Operating System System Pages Size in MB
Windows 2000
050000 195
Windows XP
110000 429
Table 6-20
On the other hand you can decrease the value for the MappingCache. This can lead to a small loss of perform-
ance for some graphic operations.