| Patent application number | Description | Published |
|---|
| 20100036940 | Data Processing In A Hybrid Computing Environment - Data processing in a hybrid computing environment that includes a host computer and an accelerator, the host and the accelerator adapted to one another for data communications by a system level message passing module and a plurality data communications fabrics of at least two different fabric types, the data processing including: monitoring data communications performance for a plurality of data communications modes; receiving, from an application program on the host computer, a request to transmit data according to a data communications mode from the host computer to the accelerator; determining, in dependence upon the monitored performance, whether to transmit the data according to the requested data communications mode; and if the data is not to be transmitted according to the requested data communications mode: selecting, in dependence upon the monitored performance, another data communications mode for transmitting the data and transmitting the data according to the selected data communications mode. | 02-11-2010 |
| 20100058356 | Data Processing In A Hybrid Computing Environment - Data processing in a hybrid computing environment that includes a host computer having a host computer architecture; an accelerator having an accelerator architecture, the accelerator architecture optimized, with respect to the host computer architecture, for speed of execution of a particular class of computing functions; the host computer and the accelerator adapted to one another for data communications by a system level message passing module; and a host application process executing on the host computer. Data processing such a hybrid computing environment includes starting, at the behest of the host application process, a thread of execution on the accelerator; returning, by the system level message passing module to the host application process, a process identifier (‘PID’) for the thread of execution; and managing, by the host application process, the thread of execution on the accelerator as though the thread of execution were a thread of execution on the host computer. | 03-04-2010 |
| 20100191711 | Synchronizing Access To Resources In A Hybrid Computing Environment - Synchronizing access to resources in a hybrid computing environment that includes a host computer, a plurality of accelerators, the host computer and the accelerators adapted to one another for data communications by a system level message passing module, where synchronizing access to resources includes providing in a registry, to processes executing on the accelerators and the host computer, a key associated with a resource, the key having a value; attempting, by a process, to access the resource including determining whether a current value of the key represents an unlocked state for the resource; if the current value represents an unlocked state, attempting to lock access to the resource including setting the value to a unique identification of the process; determining whether the current value is the unique identification of the process; if the current value is the unique identification accessing the resource by the process. | 07-29-2010 |
| 20100191822 | Broadcasting Data In A Hybrid Computing Environment - Methods, apparatus, and products for broadcasting data in a hybrid computing environment that includes a host computer, a number of accelerators, the host computer and the accelerators adapted to one another for data communications by a system level message passing module, the host computer having local memory shared remotely with the accelerators, the accelerators having local memory for the accelerators shared remotely with the host computer, where broadcasting data according to embodiments of the present invention includes: writing, by the host computer remotely to the shared local memory for the accelerators, the data to be broadcast; reading, by each of the accelerators from the shared local memory for the accelerators, the data; and notifying the host computer, by the accelerators, that the accelerators have read the data. | 07-29-2010 |
| 20100191823 | Data Processing In A Hybrid Computing Environment - Data processing in a hybrid computing environment that includes a host computer, a plurality of accelerators, the host computer and the accelerators adapted to one another for data communications by a system level message passing module, the host computer having local memory shared remotely with the accelerators, the accelerators having local memory for the plurality of accelerators shared remotely with the host computer, where data processing according to embodiments of the present invention includes performing, by the plurality of accelerators, a local reduction operation with the local shared memory for the accelerators; writing remotely, by one of the plurality of accelerators to the shared memory local to the host computer, a result of the local reduction operation; and reading, by the host computer from shared memory local to the host computer, the result of the local reduction operation. | 07-29-2010 |
| 20100191923 | Data Processing In A Computing Environment - Methods, apparatus, and products for data processing in a computing environment including allocating, by an operating system for an application, a virtual address spaces with each virtual address space mapped to a same physical address space and each virtual address space associated with an operation; receiving, from the application, an instruction to store a value in a specific virtual address, the specific virtual address contained within one of the allocated virtual address spaces; identifying a physical address associated with the specific virtual address; performing, with the value and the contents of the identified physical address, the operation associated with the virtual address space containing the specific virtual address; and storing a result of the operation in the identified physical address. | 07-29-2010 |
| 20100192123 | Software Development For A Hybrid Computing Environment - Software development for a hybrid computing environment that includes a host computer and an accelerator, the host computer and the accelerator adapted to one another for data communications by a system level message passing module and by two or more data communications fabrics of at least two different fabric types where software development includes creating, by a programmer, a computer program for execution in the hybrid computing environment, the computer program including directives for generation of computer program code that moves contents of memory among host computers and accelerators in the hybrid computing environment; generating, by a code generator application, source code in accordance with the directives; analyzing, by the code generator application, operation of the generated code for data movement and utilization of moved data; and regenerating, by the code generator application, the source code in accordance with the directives and further in accordance with results of the analysis. | 07-29-2010 |
| 20100198997 | Direct Memory Access In A Hybrid Computing Environment - Direct memory access (‘DMA’) in a hybrid computing environment that includes a host computer, an accelerator, the host computer and the accelerator adapted to one another for data communications by a system level message passing module, where DMA includes identifying, by the system level message passing module, a buffer of data to be transferred from the host computer to the accelerator according to a DMA protocol; segmenting, by the system level message passing module, the buffer of data into a predefined number of memory segments; pinning, by the system level message passing module, the memory segments against paging; and asynchronously with respect to pinning the memory segments, effecting, by the system level message passing module, DMA transfers of the pinned memory segments from the host computer to the accelerator. | 08-05-2010 |
| 20110035556 | Reducing Remote Reads Of Memory In A Hybrid Computing Environment By Maintaining Remote Memory Values Locally - Reducing remote reads of memory in a hybrid computing environment by maintaining remote memory values locally, the hybrid computing environment including a host computer and a plurality of accelerators, the host computer and the accelerators each having local memory shared remotely with the other, including writing to the shared memory of the host computer packets of data representing changes in accelerator memory values, incrementing, in local memory and in remote shared memory on the host computer, a counter value representing the total number of packets written to the host computer, reading by the host computer from the shared memory in the host computer the written data packets, moving the read data to application memory, and incrementing, in both local memory and in remote shared memory on the accelerator, a counter value representing the total number of packets read by the host computer. | 02-10-2011 |
