SP Switch function (MAP 0620)

Refer to notes at beginning of ªSP Switch function (MAP 0620)º on page 1-17 for more information on cable connections and logical-to-physical frame translations.

c.Be aware that for logical frames consisting of two physical frames, all out.top even-numbered nodes represent nodes physically located in the expansion frame (F/C 1010) but at the next lower slot number. For example, L01-N04 (logical frame 1, node 4) could be physically located at E02-N03 (physical frame 2, slot 3).

Table 1-8. Problem messages from the out.top file

Priority

Message/condition

Action

 

 

 

 

1

v

ªOn board connections...º

Go to ªStep 0620-041º on page 1-35 to replace the

(1 of 5)

 

 

switch assembly.

 

 

 

 

 

 

 

2

v

ªPrimary node connection...º

v If this is a standard node, go to ªStep 0620-005º to

(2 of 5)

v

ªNode connections...º on same switch

check ªprimaryº or ªsecondaryº processor node

 

as primary node

connection.

 

 

 

 

 

 

v If this is a dependent node (connection to router), go

 

 

 

to Dependent node (MAP 0630)in RS/6000 SP:

 

 

 

System Service Guide.

 

 

 

 

3

v

ªWrapped portsº

Go to ªStep 0620-021º on page 1-29 to check the

(3 of 5)

v

ªframe # to frame #º

wrapped port or external switch connection.

v

ªswitch # to switch #º

 

 

v

ªSwitch connections...º

 

4

v

ªNode connections...º not on same

v If this is a standard node, go to ªStep 0620-005º to

(4 of 5)

 

switch as primary node.

check ªsecondaryº processor node connection.

 

 

 

 

v If this is a dependent node (connection to router), go

 

 

 

 

 

 

to Dependent node (MAP 0630)in RS/6000 SP:

 

 

 

System Service Guide.

 

 

 

 

5

v

All problems in

Go to ªStep 0620-043º on page 1-36.

(5 of 5)

 

/var/adm/SPlogs/css/out.top file have

 

 

been addressed.

 

 

 

 

 

Step 0620-005

The /var/adm/SPlogs/css/out.top file indicates a problem with a ªPrimary nodeº or ªSecondary nodeº connection.

1.Open frame rear cover and check the cable connection from the indicated SP Switch jack to the processor node.

2.Is there a cable connected to the indicated jack on the SP Switch? v If yes, go to ªStep 0620-008º on page 1-23.

vIf no, go to ªStep 0620-006º.

Step 0620-006

No cable connected at the indicated jack on the SP Switch (refer to the tables in ªSwitch data cablesº on page 2-13).

1.Should there be a cable connecting the indicated jack to a processor node? v If yes:

a.Connect a switch data cable from this jack to the proper processor node.

b.Go to ªStep 0620-043º on page 1-36.

vIf no, go to ªStep 0620-007º.

Step 0620-007

A switch cable is not required on the indicated jack.

1-22RS/6000 SP: SP Switch Service Guide

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Image 42
IBM RS/6000 SP manual Priority Message/condition Action, Var/adm/SPlogs/css/out.top file have

RS/6000 SP specifications

The IBM RS/6000 SP (Scalable Power) is a high-performance computing system that was developed in the early 1990s and has since become a significant player in the realm of supercomputing and enterprise solutions. Designed primarily for scientific, engineering, and complex data analysis tasks, the RS/6000 SP provides powerful processing capabilities, enhanced scalability, and features to support demanding applications.

One of the key characteristics of the RS/6000 SP is its modular architecture, which allows for the addition of multiple nodes. Each node is based on IBM's Power architecture, leveraging the RISC (Reduced Instruction Set Computing) design to achieve high throughput and efficiency. The system can support configurations ranging from a few nodes to hundreds, enabling organizations to scale their computational power as needed based on workload requirements.

The RS/6000 SP employs advanced interconnect technologies, most notably the SP Switch, which ensures high-speed communication between nodes. This interconnect allows for seamless data transfer, ensuring that the system can handle large datasets and complex computations without bottlenecks. The SP's ability to deliver concurrent processing capabilities makes it ideal for parallel computing tasks, including simulations, modeling, and large-scale computations.

In terms of software, the RS/6000 SP was equipped with AIX, IBM's version of the UNIX operating system, which provides a stable and secure environment for enterprise applications. Furthermore, the system supports a vast array of programming languages and tools, including Fortran, C, and C++, along with libraries and frameworks designed for high-performance computing. This compatibility allows developers to optimize their applications to fully utilize the underlying hardware.

Another notable feature of the RS/6000 SP is its extensive support for various workloads, including database management, multi-user applications, and graphical processing. The system was equipped with high-performance graphics capabilities, making it suitable for tasks that require intensive visualization, such as computer-aided design (CAD) and scientific visualization.

Overall, the IBM RS/6000 SP has solidified its role in the high-performance computing landscape, combining advanced technologies, robust scalability, and flexibility to meet the unique demands of research and enterprise environments. Its legacy continues to influence modern computing architectures, embodying IBM’s commitment to innovation and performance in the pursuit of complex problem-solving capabilities.