IBM GC28-1982-02 manual Xiv IBM, Enhanced Job Management, Queue

Enhanced Job Management

Function

In

earlier releases

of

PE,

POE

relied on the SP Resource Manager for

job

management

functions.

These

functions

included

keeping

track

of

which

were available

or allocated

and loading the switch tables for

programs

User Space communications. LoadLeveler, which had only been used for b

submissions

in

the

past,

is

now

replacing

the

Resource

Manager

as

the

management

system

for

PE.

One notable

effect

of

this change is that L

now

allows

you

to

run

more

than

one

User Space

task per node.

MPI I/O

With PE 2.4, the MPI library now includes support for a subset of MPI

described by Chapter 9 of the MPIMPI-2-2:documExtensionsnt:to the Message-Passing Interface, Version. MPI-I/O2.0 provides a common programming interface, improving the portability of code that involves parallel I/O.

1024 Task Support

This

release

of

PE

supports a

maximum

of 1024 tasks

per User

Space

MP

job,

as

opposed

to

the previous

release,

which supported a

maximum

of

For

jobs

using

the

IP version

of

the

MPI

library,

PE supports

a maximu

tasks.

Enhanced	Compiler Support
	In	this	release,	POE now supports the following compilers:
	Ÿ	C
	Ÿ	C++
	Ÿ	Fortran	Version	5
	Ÿ	xlhpf

Xprofiler Enhancements

This	release	includes		a variety		of	enhancements to Xprofiler, including:
Ÿ Save ConfigurationandLoad Configurationoptions for saving the names of
functions, currently in the display, and reloading them later in orde
reconstruct		the function			call	tree.
Ÿ An	Undo option		that	lets	you undo operations that involve adding or r
nodes or arcs			from	the	function		call tree.

Message

Queue

Facility

The pedb

debugger now includes a message queue facilitypedb

. Part of the

debugger interface, the message queue viewing feature can help

you

Message

Passing Interface (MPI) applications by showing internal message

queue

information.

With

this

feature,

you

can view:

Ÿ

A summary

of

the number

of

active

messages for each task in

the

You

can

select

criteria

for the

summary

information based on

messag

and

source,

destination,

and

tag

filters.

Ÿ

Message

queue

information

for

a

specific

task.

Ÿ

Detailed

information

about a

specific

message.

xiv IBM

PE for

AIX V2R4.0:

Messages