IBM GC28-1982-02 Shell Rsh, Bothstandard Output Stdout, Administrator, Fault, Code, Tracepoint

remote

shell

(rsh) .

A

command

supplied

with

bothstandard

output (STDOUT)

.

In the

AIX

operating

AIX

and the Parallel System Support Programs

thatsystem,letsthe

primary

destination

of

data

produced

you

issue

commands

on

a

remote

host.

command. Standard output goes to

the

display

unless

Report

redirection

or piping

is

used,

in

which

case

stan

.

In

Xprofiler,

a

tabular

listing

of

performance

file

or to

another

command.

output can go to a

data

that

is

derived

from the

gmon.out

files of

an

application. There are five types of reportsstencilthat. Aarepattern of memory references used for

generated

by

Xprofiler,

and

each one presentsaveragdingfferent.A 4-point stencil in two dimensions for a

statistical

information

for

an

application.

given

array

cell,

x(i,j), uses

the

four

adjacent

Resource

Manager

x(i-1,j),

x(i+1,j),

x(i,j-1),

and

x(i,j+1).

.

A

server

that

runs

on

one

of

the

nodes

of

a

IBM

RS/6000

SP

(SP)

machine. It

prevensubroutine

.

(1)

A

sequence

of

instructions

whose

parallel

jobs

from

interfering

with

each

other,executionand

is

invoked by

a

call.

(2)

A

sequenced

reports

job-related

node

information.

instructions

or statements that may be used in one

RISC .

more

computer

programs

and

at

one

or

more

points

i

Reduced

Instruction

Set

Computing

(RISC),

the

program.

(3)

A

group

of

instructions

tha

a

computer

technology

for

today's

high-performance

personal

or

can

be

called

can be part of another routine

computers

and

workstations,

was

invented

in

1975.

program or

routine.

another

S

synchronization

.

The

action

of

forcing

certain

point

in the execution sequences of two or more

asynchronous

procedures

to

coincide

in

time.

shell script . A sequence of commands that are to be

executed

by

a

shell

interpreter

such

as

C

shell,

korn

(1)

The

person

at

a

computer

system

administrator .

shell,

or

Bourne

shell.

Script

commands

are stored

in

a

who designs, controls, and manages the us

installation

file

in

the

same form

as

if

they

were

typed

at

a

terminal.

of the computer system. (2) The person who is

segmentation

fault

.

A

system-detected

error,

responsible for setting up, modifying, and maintaining

usually

Environment.

caused

by

referencing

an

invalid

memory

the

Parallel

address.

server

.

A

functional

unit

that

provides

System

Data

Repository

.

A

component

of

the

Parallel

shared

services

Programs

software

that

provides

to

workstations

over

a

network;

for

example,

System

Support

a

file

for

the

SP

system.

It

server,

a print

server,

a

mail

server.

configuration management

manages the storage and retrieval of system data

signal

handling

.

A

type

of

communication

that

across

the

control

workstation,

file

servers,

and

no

is

used

by

message

passing

libraries.

Signal

handling

involves

Array .

An

X-Windows

run time

monitor

using

AIX

signals

as

an

asynchronous

way

to

System

Status

move

provided

with

the

Parallel Operating

Environment,

data

in

and

out

of

message

buffers.

tool,

that

lets you quickly survey the

utilization

of

pr

source

line .

A

line

of

source

code.

nodes.

T

source

code

.

The

input

to

a

compiler

or

assembler,

written in a source language. Contrast with object

code.

task .

A unit of computation analogous to an AIX

SP .

IBM

RS/6000

SP;

a

scalable

system

from

process.

two

to

128

processor

nodes,

arranged

in

various

physical

thread . A single, separately dispatchable, unit of

configurations,

that

provides

a

high-powered

computing

environment.

execution. There may be one or more threads in

process,

and

each

thread

is

executed

by

the

o

SPMD

(Single

Program

Multiple

Data)

.

A

parallel

system

concurrently.

programming

model

in

which

different

processors

tracing . In PE, the collection of data for the

execute

the

same

program

on

different

sets

of

data.

Visualization Tool (VT). The programtracedbyis

standard

input

(STDIN) .

In

the

AIX

operating

collecting information about the execution of the

system,

in

trace

records.

These

records

are then

the

primary

source

of

data

entered

into

a

program

command.

accumulated into a trace file which a user visual

Standard input comes from the keyboard unlesswith VT.

redirection or piping is used,

in

which

case

standard

input

can

be

from

a

file

or

the

output

from

another

Tracepoints are places in the program

command.

tracepoint .

that,

when

reached during execution, cause the

Glossary

of

Terms

and

Abbreviations193