International Business Machines Corporation

Carl Joseph Parris

Rajaram B Krishnamurthy

Yuk Lung Chan

Benjamin P Segal

Donald W Schmidt

Charles E Boice

Lurng-Kuo Liu

David G Chapman

Natarajan Krishnaswami

A method, hybrid server system, and computer program product, prefetch data. A set of prefetch requests associated with one or more given datasets residing on the server system are received from a set of accelerator systems. A set of data is prefetched from a memory system residing at the server system for at least one prefetch request in the set of prefetch requests. The set of data satisfies the at least one prefetch request. The set of data that has been prefetched is sent to at least one accelerator system, in the set of accelerator systems, associated with the at least one prefetch request.

Hierarchical pre-fetch pipelining in a hybrid memory server

Once or more embodiments manage access to data by accelerator systems in an out-of-core processing environment. In one embodiment, a request from an accelerator system is received for access to a given data set. An access context associated with the given data set is determined. The accelerator system is dynamically configured, based on the access context that has been determined, based on the access context that has been determined, to one of access the given data set directly from the server system; locally store a portion of the given data set in a memory; and locally store all of the given data set in the memory.

Data access management in a hybrid memory server

Once or more embodiments manage access to data by accelerator systems in an out-of-core processing environment. In one embodiment, a request from an accelerator system is received for access to a given data set. An access context associated with the given data set is determined The accelerator system is dynamically configured, based on the access context that has been determined, based on the access context that has been determined, to one of access the given data set directly from the server system; locally store a portion of the given data set in a memory; and locally store all of the given data set in the memory.

A method, hybrid server system, and computer program product, for managing access to data stored on the hybrid server system. A memory system residing at a server is partitioned into a first set of memory managed by the server and a second set of memory managed by a set of accelerator systems. The set of accelerator systems are communicatively coupled to the server. The memory system comprises heterogeneous memory types. A data set stored within at least one of the first set of memory and the second set of memory that is associated with at least one accelerator system in the set of accelerator systems is identified. The data set is transformed from a first format to a second format, wherein the second format is a format required by the at least one accelerator system.

Hybrid server with heterogeneous memory

A method, accelerator system, and computer program product, for prefetching data from a server system in an out-of-order processing environment. A plurality of prefetch requests associated with one or more given data sets residing on the server system are received from an application on the server system. Each prefetch request is stored in a prefetch request queue. A score is assigned to each prefetch request. A set of the prefetch requests are selected from the prefetch queue that comprise a score above a given threshold. A set of data, for each prefetch request in the set of prefetch requests, is prefetched from the server system that satisfies each prefetch request, respectively.

Speculative and coordinated data access in a hybrid memory server

A method, hybrid server system, and computer program product, support multiple users in an out-of-core processing environment. At least one accelerator system in a plurality of accelerator systems is partitioned into a plurality of virtualized accelerator systems. A private client cache is configured on each virtualized accelerator system in the plurality of virtualized accelerator systems. The private client cache of each virtualized accelerator system stores data that is one of accessible by only the private client cache and accessible by other private client caches associated with a common data set. Each user in a plurality of users is assigned to a virtualized accelerator system from the plurality of virtualized accelerator systems.

Growing community of inventors

Rhinebeck, NY, United States of America

Carl Joseph Parris