HP Kayak XU 04xx HP Kayak XU PC Workstation Technical Reference Manual Hardwar - Page 26

Optional Second Microprocessor, Configuring, Multi-Processing

Get HP Kayak XU 04xx PDF manuals and user guides View all HP Kayak XU 04xx manuals
Add to My Manuals
Save this manual to your list of manuals

Page 26 highlights

2 System Board Devices on the Processor-Local Bus Optional Second Microprocessor The HP Kayak XU PC Workstation has dual processing capability. However, not all operating systems support a second processor, and of those that do, not all result in an increase in system performance. Installing a second processor is only advantageous when the software can make use of parallel activity. In particular, you need to be running a multi-threaded operating system that supports multiprocessing (one that is MPS-ready), such as Windows NT. The Windows NT operating system makes best use of the Pentium II's 32-bit architecture (though other operating systems will also show some benefit if 32-bit application programs are run). The following table summarizes the supported operating systems: Windows NT 4.0 (or greater) Windows 95 Multi-threaded Yes Yes MPS-ready Yes 32-bit operating system Yes No Partial1 32-bit applications available Yes Yes 1. 32-bit operation at the outermost levels, but only 16-bit working internally The two processors must be operating at the same processor speed. Both processors must either, support the processor internal ECC functionality, or not. Configuring Setup for Multi-Processing NOTE The HP Kayak XU PC Workstation supports Symmetric Multi-Processing (SMP). When adding a second processor, it must be made sure that: (a) the choice "multi-processing" has been made in the system Setup; (b) the operating system supports multi processors. In the case of Windows NT, it might be necessary to perform an upgrade from the MPS uniprocessor to the MPS multi-processor version. The system Setup allows to choose between "mono or multi-processing" operations. The "mono-processing" mode has been implemented in order to support operating systems that rely on the "legacy" interrupt controller 82C59 and are not aware of I/O APIC controller 820093AA operation. Refer to page 57 for further details. 18

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
18
2
System Board
Devices on the Processor-Local Bus
Optional Second Microprocessor
The
HP Kayak XU PC Workstation
has dual processing capability.
However, not all operating systems support a second processor, and of those
that do, not all result in an increase in system performance. Installing a
second processor is only advantageous when the software can make use of
parallel activity. In particular, you need to be running a multi-threaded
operating system that supports multiprocessing (one that is
MPS-ready
),
such as Windows NT. The Windows NT operating system makes best use of
the Pentium II’s 32-bit architecture (though other operating systems will
also show some benefit if 32-bit application programs are run). The
following table summarizes the supported operating systems:
The two processors must be operating at the same processor speed. Both
processors must either, support the processor internal ECC functionality, or
not.
Configuring
Setup
for
Multi-Processing
The HP Kayak XU PC Workstation supports Symmetric Multi-Processing
(SMP). When adding a second processor, it must be made sure that: (a) the
choice “multi-processing” has been made in the system
Setup
; (b) the
operating system supports multi processors.
In the case of Windows NT, it might be necessary to perform an upgrade
from the MPS uniprocessor to the MPS multi-processor version.
NOTE
The system
Setup
allows to choose between “mono or multi-processing”
operations. The “mono-processing” mode has been implemented in order to
support operating systems that rely on the “legacy” interrupt controller
82C59 and are not aware of I/O APIC controller 820093AA operation. Refer
to
page 57
for further details.
1.
32-bit operation at the outermost levels, but only 16-bit working internally
Windows NT 4.0
(or greater)
Windows 95
Multi-threaded
Yes
Yes
MPS-ready
Yes
No
32-bit operating system
Yes
Partial
1
32-bit applications available
Yes
Yes