The IBM eServer BladeCenter JS20 - IBM Redbooks

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capabilities were usually referred to as Single Instruction Multiple Data (SIMD) extensions and operated on short vectors. Examples of SIMD extensions in widespread use today include: ► Intel Multimedia Extensions (MMX) ► Intel Streaming SIMD Extensions (SSE) ► AMD 3DNow! ► Motorola Altivec and IBM VMX The SIMD extensions found in microprocessors used in desktop computers operate on short vectors of length 2, 4, 8, or 16. This is in contrast to the classic vector supercomputers that can often exploit long vectors of length 64 or more. VMX extensions to PowerPC Architecture The VMX extensions to PowerPC Architecture add a vector processor (VXU) to the PowerPC logical processing model that was described earlier in “PowerPC User Instruction Set Architecture” on page 33. This is illustrated in Figure 2-11. Fixed-Point Instructions Fixed-Point Processing (FXU) Instructions from Storage Figure 2-11 PowerPC with VMX logical processing model The VXU operates on vectors that are a total of 128-bits long. These can be interpreted by the VXU as either: ► A vector of sixteen 8-bit bytes ► A vector of eight 16-bit half words ► A vector of four 32-bit words 40 The IBM Eserver BladeCenter JS20 Branch Processing (BPU) Floating-Point Instructions Floating- Point Processing (FPU) Storage Data to/from Storage Vector Processing (VXU) Vector Instructions
The VMX extensions to PowerPC Architecture define 32 vector registers that form the vector register file (VRF). The VRF is architecturally distinct from the standard PowerPC FPRs and GPRs. The VMX extensions to PowerPC also define two additional registers: ► The VMX status and control register (VSCR), which is used to control the operation of the VXU and report the status of some VMX operations ► The VRSAVE register, which can be used to assist the operating system save state across context switches by providing a mechanism for software to indicate what vector registers are in use The additional registers provided by VMX are illustrated in Figure 2-12. VRSAVE 0 31 VSCR 0 31 Figure 2-12 VMX registers VRSAVE Register Vector Status and Control Register Vector Register File (VRF) VR0 VR1 VR31 0 127 The VMX extensions to PowerPC Architecture define new instructions that use the VXU to manipulate vectors stored in the VRF. These instructions fall into these categories: ► Vector integer arithmetic instructions (on 8-bit, 16-bit, or 32-bit integers) ► Vector floating-point arithmetic instructions (32-bit only) ► Vector load and store instructions ► Vector permutation and formatting instructions ► Processor control instructions used to read and write from the VMX status and control register ► Memory control instructions used to manage caches ... Chapter 2. Hardware components 41
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The IBM Eserver BladeCenter JS20 Le
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Note: Before using this information
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Chapter 4. Planning considerations
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e. Leave the values for User Define
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connections. This is sufficient to
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minutes, you are disconnected. You
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6. As soon as you type 8, the Open
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5. Select the JS20 blade that you a
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6.1 Installing Linux Both Red Hat E
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SuSE sources SuSE installations are
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3. In the next panel as shown in Fi
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To build your own zImage.initrd, fo
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6.2.1 BOOTP DHCP is an extension to
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6.3.1 Red Hat Kickstart Red Hat pro
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6.3.2 SuSE AutoYaST SLES provides a
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► System Set the general system i
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The syntax for mkzimage_cmdline is
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3. We select the install option and
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7.1 Minimal NIM installation Follow
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4. In the next window (Figure 7-4),
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3. In the Configure NIM Environment
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7.3 Adding machine information With
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3. In the next window (Figure 7-12)
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7.4 Preparing the NIM master With a
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1. On the first panel, select the d
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4. As illustrated in Figure 7-19, w
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8.1 IBM Director IBM Director is a
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8.1.1 Setting up an IBM Director Se
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8. Enter the database connection in
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2. With the sources copied to the h
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As CSM was being developed, the Ext
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This is the interface that will be
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version packaged with CSM. And you
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You can verify what user IDs you co
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► PowerMethod: Should always be b
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The csmsetupyast command uses an XM
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RHEL Red Hat Enterprise Linux RISC
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Online resources ► CSM for Linux:
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How to get IBM Redbooks Help from I
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eth0 62 eth1 62 F Fibre Channel Exp
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T translation lookaside buffer (TLB
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The IBM Eserver BladeCenter JS20 Le
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