IBM United States
Software Announcement 200-224
July 18, 2000

LoadLeveler for AIX, V2.2 Offers More Options and Greater Flexibility

 ENUS200-224.PDF (31KB)

At a Glance

This new release of LoadLeveler for AIX adds new and enhanced function for more control in scheduling and managing jobs submitted to one or more RS/6000 machines. In addition, this new release:

  • Gives you greater flexibility in task assignment
  • Improves scheduling by adjusting to resource availability
  • Optimizes performance by removing processes leftover from terminated jobs
  • Exploits the Security Services within Parallel System Support Programs (PSSP)
  • Improves ease of use with GUI enhancements
  • Provides functional enhancements for more robust and efficient scheduling of interactive Parallel Operating Environment (POE) jobs.

For ordering, contact:

Your IBM representative, an IBM Business Partner, or IBM Americas Call Centers at 800-IBM-CALL (Reference: RE001).


LoadLeveler® for AIX® is a versatile workload management system for serial and parallel batch jobs running on the RS/6000® SP™ System and RS/6000 servers and workstations. LoadLeveler lets you schedule jobs as they arise so you're not tied down to a preset schedule. Because it distributes processing to available resources, your system can actually run more jobs in less time.

V2.2 of LoadLeveler for AIX features a number of enhancements that increase flexibility while optimizing performance.

More Scheduling Options

A new, consumable resources facility allows users to schedule jobs based on the availability of specific resources.

Improved Security

By exploiting the PSSP Security Services within the Distributed Computing Environment (DCE), administrators can authenticate user identity so only DCE-authenticated users can schedule jobs and forward credentials so jobs will run with the user's DCE authority.

Improved Process Tracking

By tracking processes spawned off by a job and canceling any processes left behind when a job is terminated, LoadLeveler now ensures that resources assigned to cancelled jobs become available for future use.

More Task Assignment Options

When assigning tasks, you can now run an individual job on a specific node, assign tasks in blocks, let LoadLeveler determine the assignment, or use a combination of methods.

More Tasks

With the use of Parallel Environment and the new SP Switch2, LoadLeveler can manage jobs with up to 4096 user-space tasks, where previously it could manage up to 1024.

Improved Ease of Use

The LoadLeveler Graphical User Interface (GUI) has been enhanced to provide a sequence of panels the user can step through to accomplish certain configuration-related tasks.

Withdrawal of LoadLeveler for AIX, V2.1

LoadLeveler for AIX, V2.1 will no longer be marketed as of November 3, 2000.

Key Prerequisites

LoadLeveler for AIX, V2.2 can be used with the RS/6000 SP and other RS/6000 servers and workstations using the IBM AIX 4.3.3 operating system. To run Parallel Operating Environment (POE) jobs, the Parallel Environment for AIX product is required.

Planned Availability Date

July 28, 2000


LoadLeveler for AIX, V2.2 provides the following improvements:

  • Task to Node assignment is more flexible. A user can specify specific nodes for a job to run based upon keywords provided. Tasks can be:
    • Assigned in blocks
    • Assigned specifically by the user
    • Left for LoadLeveler to determine assignment
    • Or a combination of the above
  • A process tracking function is provided which allows LoadLeveler to cancel any processes throughout the entire cluster which may have been left behind after a job is terminated. This prevents these processes from consuming resources or degrading performance in the cluster.
  • Task Guide support has been added. A Task Guide is a sequence of panels a user steps through to accomplish a task. The Task Guide format in LoadLeveler for AIX, V2.2 provides the same look and feel as that in PSSP. The LoadLeveler Task Guide allows modification of LoadLeveler configuration values related to scheduling such as:
    • Setting up consumable resources
    • Tuning scheduling and communications keywords
    • Merging SP machine and adapter information
  • The use of consumable resources allows users to schedule jobs based on the availability of specific resources. A scheduling option is available to request resources such as CPU for running jobs. Installation-defined resources can be specified and considered in scheduling as well. Keywords have been added that can specify:
    • Which resource to be considered by the LoadLeveler scheduler when dispatching jobs
    • What resources are available collectively on all machines
  • Loadleveler for AIX, V2.2 offers improved security by exploiting the Security Services offered in PSSP V3.2. With this Distributed Computing Environment (DCE), administrators can authenticate user identity so only DCE-authenticated users can schedule jobs. In addition, you can forward credentials so jobs will run with the user's DCE authority.
  • Users running parallel applications now have the ability to specify more job parameters (such as resources required and node preference) for their interactive POE jobs. This capability is particularly beneficial to large cluster installations.
  • With the use of the new SP Switch2 and Parallel Environment, LoadLeveler for AIX, V2.2 can handle jobs with up to 4096 user-space tasks, where previously it could handle jobs up to 1024 tasks. Refer to Hardware Announcement 100-209 , dated July 18, 2000, for information on the SP Switch2.
  • A new daemon, gsmonitor, has been added to monitor machine availability and notify the negotiator when a machine is no longer reachable. This daemon provides quicker and more reliable response with its use of the PSSP Group Services API (GSAPI).
  • New Application Programming Interface (API) calls provide the functions which were previously available through the command line only.

Year 2000

This product does not have date dependencies and is, therefore, Year 2000 ready.

Euro Currency

This program is not impacted by euro currency.

Product Positioning

LoadLeveler is an integral piece of the total system management solution for the RS/6000 SP Systems and other RS/6000 servers and workstations and can take advantage of features provided in Parallel System Support Programs, such as DCE SP security.

LoadLeveler is ideal for users who need to submit jobs as necessary, not according to any pre-set schedule. Other job schedulers that provide a rule-based, batch workload management for inter-job dependencies and scheduling jobs at predetermined schedules, can be integrated with LoadLeveler function.

LoadLeveler supports load balancing for interactive Parallel Operating Environment sessions, and focuses on parallel job scheduling and scalability.

Reference Information

Refer to:

  • Software Announcement 200-222 , dated July 18, 2000
  • Software Announcement 200-221 , dated July 18, 2000
  • Hardware Announcement 100-209 , dated July 18, 2000


SP is a trademark of International Business Machines Corporation in the United States or other countries or both.
AIX, LoadLeveler, and RS/6000 are registered trademarks of International Business Machines Corporation in the United States or other countries or both.
Other company, product, and service names may be trademarks or service marks of others.

Offering Information

Product information will be available on day of announcement through Offering Information (OITOOL) at:


No hardcopy publications are shipped with this program.

Displayable Softcopy Publications

The following publications are offered in displayable softcopy form.

  • IBM LoadLeveler® for AIX®: Using and Administering Guide
  • IBM LoadLeveler for AIX: Diagnosis and Messages Guide
  • IBM LoadLeveler Installation Memo

The displayable manuals are part of the basic machine-readable material. The files are shipped on CD-ROM.

These displayable manuals are part of the basic machine-readable material and are viewable in PDF and HTML formats. These publications are also available on the SP™ Resource Center which is shipped with PSSP and will be available on the RS/6000® Web site on the planned availability date.

Terms and conditions for use of the machine-readable files are shipped with the files.

Technical Information

Specified Operating Environment

Hardware Requirements

LoadLeveler runs on RS/6000 SP Systems and other RS/6000 servers and workstations.

LoadLeveler requires:

  • 30 MB of disk space, which must be available on at least one node for LoadLeveler product code
  • A minimum of 15 to 20 MB, on each node on an RS/6000 SP or in a RS/6000 server or workstation cluster for local log and work files

Software Requirements

  • LoadLeveler requires the AIX Version 4.3.3 operating system (5765-C34)
    • To run parallel operating environment (POE) jobs: Parallel Environment for AIX, Version 2.4 (5765-543), or Version 3.1 (5765-D93) is required
    • If using the GUI: AIXwindows® Environment, Version 4.3.3 (5765-C34) is required
    • Parallel Systems Support Programs for AIX, Version 3.1 or later compatible release (5765-D51) is required only:
      • If you plan to run POE jobs in user-space mode with LoadLeveler on an SP, the Job Switch Resource Table Services fileset ( 3.1 or later compatible releases) of the PSSP install image is required
      • If you plan to configure LoadLeveler to support DCE security services, SP Authenticated Clients Commands fileset (ssp.clients 3.2) of the PSSP installp image is required

Compatibility: In order for LoadLeveler for AIX, V2.1 to coexist with LoadLeveler for AIX, V2.2, APAR number IY06027 is required on V2.1.

LoadLeveler for AIX, V2.1 will not execute with Parallel Environment V3.1.

LoadLeveler for AIX, V2.2 can run with Parallel System Support Programs (PSSP) V3.1 and Parallel Environment V2.4.

Limitations: Limitations with AIX 4.3.3: As a performance enhancement, AIX 4.3.3 modified the scheduler to have multiple run queues and load balancing. However, use of these features can cause problems when used on SP nodes.

Limitations with Parallel Environment 3.1: The use of the parallel user initiated checkpoint/restart support is limited to use with the UDP/IP message passing library. Checkpoint/restart can no longer be used with programs using the RS/6000 SP User Space message passing library.

Performance Considerations: If running with DCE security services, the overhead may cause decreased throughput.

Planning Information

Installability: APAR number IY06027 is required for migrating from LoadLeveler V2.1 to LoadLeveler V2.2 if you plan to do a node-by-node migration of your LoadLeveler cluster.

If LoadLeveler and Parallel Environment (PE) are used with PSSP V3.2, migration to PSSP V3.2, LoadLeveler V2.2, and PE V3.1 must be completed simultaneously.

Packaging: IBM LoadLeveler for AIX, V2.2 is distributed in one package with the following:

  • IBM International Program License Agreement in multilanguage booklet and its license information (LI)
  • Proof of Entitlement
  • CD-ROM (LCD4-3031)
  • Memos

Hardcopy publications will not be shipped. All publications are available softcopy only on the product media.

Security, Auditability, and Control

LoadLeveler uses the security and auditability features of the AIX Version 4.3 Operating System.

The customer is responsible for evaluation, selection, and implementation of security features, administrative procedures, and appropriate controls in application systems and communication facilities.

Ordering Information

LoadLeveler for AIX, V2.2 has two charge units, one for the SP based on nodes and the other for workstations and servers based on installations/authorizations. These installations are available in variable order quantities based on the number of workstations or servers with which LoadLeveler will be installed. LoadLeveler on the SP is shipped with the hardware but must be ordered.

For current licensees of LoadLeveler V2.1, this is a no-charge upgrade.

Program Name: LoadLeveler for AIX, V2.2

New users of LoadLeveler V2.2 should specify Type 5765, Model D61, asset feature number 9001, and the feature number equal to the total number of desired licenses to be installed times the quantity of installs. For example, to order 12 licenses of LoadLeveler, specify the feature number for Order Type Description 11 to 50 Installs, with a quantity of 12.

                                Machine    OTC       Medium
                                Type/      Feature   Feature
Description                     Model      Number    Number    Medium
1 to 5 Installs                 5765-D61   2001      5000      CD-ROM
6 to 10 Installs                           2002
11 to 50 Installs                          2003
51 or More Installs                        2004
 Per RS/6000 SP Node                       2005

OTC = One-Time Charge

Upgrades: Current licensees of LoadLeveler for AIX, V1.3 or V2.1 who wish to upgrade to LoadLeveler for AIX, V2.2, should specify Type 5765 and Model D61 and order an upgrade equal to the current level of use authorized. For example, if you are currently licensed to use LoadLeveler for AIX, V2.1 on eight nodes, workstations, or servers, order the feature number for Order Type Description 6 to 10 Installs with a quantity equal to 8.

                                Machine    OTC       Medium
                                Type/      Feature   Feature
Description                     Model      Number    Number    Medium
Upgrade from 5765-D61 V2R1
1 to 5 Installs                 5765-D61   2006      5000      CD-ROM
6 to 10 Installs                           2007
11 to 50 Installs                          2008
51 or More Installs                        2009
Upgrade from 5765-145 V1R3
1 to 5 Installs                 5765-D61   2011      5000      CD-ROM
6 to 10 Installs                           2012
11 to 50 Installs                          2013
51 or More Installs                        2014
Feature Withdrawals: The following feature numbers for LoadLeveler V2.1 (5765-D61) will be withdrawn as of November 3, 2000.

Description                                                 Number
RS/6000 SP Feature                                          1460
 (P5 Processor)
Program Package                                             0001
1 Use-Pack                                                  0002
5 Use-Pack                                                  0003
10 Use-Pack                                                 0004
50 Use-Pack                                                 0005
Program Package Upgrade                                     1001
1 Install for Upgrade                                       1002
Version 2.1 CD-ROM Media                                    6594

Software Subscription for AIX (5692-SSO)

To register for future upgrades of products from Software Subscription for AIX for programs described in this announcement, specify 5692-SSO and feature number 9001 for asset registration, and the applicable billing features with quantity equal to the number of licenses in the Software Subscription for AIX contract. Use the tables below as reference to select the appropriate billing feature.

SP customers should use the feature number equivalent to the number of installs to which they are ordering.

Program Name: LoadLeveler for AIX, V2.2

                                 Order-Type                 Billing
Description                      Number                     Feature
LoadLeveler V2.2                 5692-SSO
 for AIX (5765-D61)
1 to 5 Installations                                        6499
6 to 10 Installations                                       6500
11 to 50 Installations                                      6501
51 or More Installations                                    6502

Customization Options for 5765-D61: Select the appropriate feature numbers to customize your order with delivery options desired. These features can be specified on the initial or MES orders.

Example: For future updates, specify feature number 3480 to ship media updates only. If, in the future, publication updates are required, order an MES to remove feature number 3480; then, the publications will ship with the next release of the program.

Description                                         Number
Initial Shipments
Serial Number Only (suppresses shipment             3444
 of media and documentation)
Ship Media Only (suppresses initial                 3470
 shipment of documentation)
Update Shipments
Ship Media Updates Only (suppresses                 3480
 update shipment of documentation)
Suppress Updates (suppresses update                 3482
 shipment of media and documentation)
Description                                         Number
Expedite Shipments
Local IBM Office Expedite                           3445
 (for IBM use only)
Customer Expedite Process Charge                    3446
 ($30 charge for each product)

Expedite shipments will be processed to receive 72-hour delivery from the time IBM Software Delivery and Fulfillment (SDF) receives the order. SDF will then ship the order via overnight air transportation.

Terms and Conditions

Licensing: IBM International Program License Agreement. Proofs of Entitlement (PoE) are required for all authorized use.

Limited Warranty Applies: Yes

Program Services

  • LoadLeveler V2.2 Available Until: December 31, 2002
  • LoadLeveler V2.1 Available Until: December 31, 2001

Money-Back Guarantee: Two-month, money-back guarantee

Copy and Use on Home/Portable Computer: No

Volume Orders (IVO): Yes, contact your IBM representative.

Passport Advantage Applies: No

Passport Advantage Subscription Applies: No

Support Line: Yes

AIX/UNIX Upgrade Protection Applies: Yes

Entitled Upgrade for Current AIX/UNIX Upgrade Protection Licensees: No

AS/400 Software Subscription Applies: No

Variable Charges Apply: No

Educational Allowance Available: Yes, 15% education allowance applies to qualified education institution customers.


Contact your IBM representative for charges information for this announcement.

Order Now

 Use Priority/Reference Code: RE001
 Phone:     800-IBM-CALL
 Fax:       800-2IBM-FAX
 Mail:      IBM Atlanta Sales Center
            Dept. RE001
            P.O. Box 2690
            Atlanta, GA  30301-2690

You can also contact your local IBM Business Partner or IBM representative. To identify them, call 800-IBM-4YOU.

Note: Shipments will begin after the planned availability date.


SP is a trademark of International Business Machines Corporation in the United States or other countries or both.
AIX, LoadLeveler, RS/6000, and AIXwindows are registered trademarks of International Business Machines Corporation in the United States or other countries or both.
Other company, product, and service names may be trademarks or service marks of others.

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