International Business Machines Corporation

Thomas A Budnik

Mark Gregory Megerian

Samuel J Miller

Amanda Peters

Patrick Joseph McCarthy

Michael B Mundy

Gordon G Stewart

Paul V Allen

Todd Alan Inglett

James C Sexton

Alan Jonathan King

Brant L Knudson

William Maupin Stockdell

A method, computer program product and computer system for scaling and managing requests on a massively parallel machine, such as one running in MIMD mode on a SIMD machine. A submit mux (multiplexer) is used to federate work requests and to forward the requests to the management node. A resource arbiter receives and manges these work requests. A MIMD job controller works with the resource arbiter to manage the work requests on the SIMD partition. The SIMD partition may utilize a mux of its own to federate the work requests and the computer nodes. Instructions are also provided to control and monitor the work requests.

Scaling and managing work requests on a massively parallel machine

A method for resource management on a computer system utilizing hardware and environmental information. A caller interacts with an application program interface to handle information requests with a persistent data storage device to combine information involving hardware resource information, environmental data and other system information, all both historical, present and predicted values. Application execution decisions may then made regarding hardware for the calling entity. The method may be implemented as a computer process.

Resource management on a computer system utilizing hardware and environmental factors

Methods, systems, and products for dynamically reassigning a connected node to a block of compute nodes for re-launching a failed job that include: identifying that a job failed to execute on the block of compute nodes because connectivity failed between a compute node assigned as at least one of the connected nodes for the block of compute nodes and its supporting I/O node; and re-launching the job, including selecting an alternative connected node that is actively coupled for data communications with an active I/O node; and assigning the alternative connected node as the connected node for the block of compute nodes running the re-launched job.

Dynamically reassigning a connected node to a block of compute nodes for re-launching a failed job

Executing MIMD programs on a SIMD machine, the SIMD machine including a plurality of compute nodes, each compute node capable of executing only a single thread of execution, the compute nodes initially configured exclusively for SIMD operations, the SIMD machine further comprising a data communications network, the network comprising synchronous data communications links among the compute nodes, including establishing one or more SIMD partitions, booting one or more SIMD partitions in MIMD mode; establishing a MIMD partition; executing by launcher programs a plurality of MIMD programs on two or more of the compute nodes of the MIMD partition; and re-executing a launcher program by an operating system on a compute node in the MIMD partition upon termination of the MIMD program executed by the launcher program.

Re-executing launcher program upon termination of launched programs in MIMD mode booted SIMD partitions

Executing Multiple Instructions Multiple Data ('MIMD') programs on a Single Instruction Multiple Data ('SIMD') machine, the SIMD machine including a plurality of compute nodes, each compute node capable of executing only a single thread of execution, the compute nodes initially configured exclusively for SIMD operations, the SIMD machine further comprising a data communications network, the network comprising synchronous data communications links among the compute nodes, including establishing a SIMD partition comprising a plurality of the compute nodes; booting the SIMD partition in MIMD mode; executing by launcher programs a plurality of MIMD programs on compute nodes in the SIMD partition; and re-executing a launcher program by an operating system on a compute node in the SIMD partition upon termination of the MIMD program executed by the launcher program.

Growing community of inventors

Rochester, MN, United States of America

Thomas A Budnik