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PCI Express and Titan (supercomputer)

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between PCI Express and Titan (supercomputer)

PCI Express vs. Titan (supercomputer)

PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X, and AGP bus standards. Titan or OLCF-3 is a supercomputer built by Cray at Oak Ridge National Laboratory for use in a variety of science projects. Titan is an upgrade of Jaguar, a previous supercomputer at Oak Ridge, that uses graphics processing units (GPUs) in addition to conventional central processing units (CPUs). Titan is the first such hybrid to perform over 10 petaFLOPS. The upgrade began in October 2011, commenced stability testing in October 2012 and it became available to researchers in early 2013. The initial cost of the upgrade was US$60 million, funded primarily by the United States Department of Energy. Titan is due to be eclipsed at Oak Ridge by Summit in 2019, which is being built by IBM and features fewer nodes with much greater GPU capability per node as well as local per-node non-volatile caching of file data from the system's parallel file system. Titan employs AMD Opteron CPUs in conjunction with Nvidia Tesla GPUs to improve energy efficiency while providing an order of magnitude increase in computational power over Jaguar. It uses 18,688 CPUs paired with an equal number of GPUs to perform at a theoretical peak of 27 petaFLOPS; in the LINPACK benchmark used to rank supercomputers' speed, it performed at 17.59 petaFLOPS. This was enough to take first place in the November 2012 list by the TOP500 organization, but Tianhe-2 overtook it on the June 2013 list. Titan is available for any scientific purpose; access depends on the importance of the project and its potential to exploit the hybrid architecture. Any selected programs must also be executable on other supercomputers to avoid sole dependence on Titan. Six vanguard programs were the first selected. They dealt mostly with molecular scale physics or climate models, while 25 others were queued behind them. The inclusion of GPUs compelled authors to alter their programs. The modifications typically increased the degree of parallelism, given that GPUs offer many more simultaneous threads than CPUs. The changes often yield greater performance even on CPU-only machines.

Similarities between PCI Express and Titan (supercomputer)

PCI Express and Titan (supercomputer) have 7 things in common (in Unionpedia): AnandTech, Edge connector, Graphics processing unit, IBM, Nvidia, PCI Express, Video card.

AnandTech

AnandTech is an online computer hardware magazine.

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Edge connector

An edge connector is the portion of a printed circuit board (PCB) consisting of traces leading to the edge of the board that are intended to plug into a matching socket.

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Graphics processing unit

A graphics processing unit (GPU) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device.

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IBM

The International Business Machines Corporation (IBM) is an American multinational technology company headquartered in Armonk, New York, United States, with operations in over 170 countries.

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Nvidia

Nvidia Corporation (most commonly referred to as Nvidia, stylized as NVIDIA, or (due to their logo) nVIDIA) is an American technology company incorporated in Delaware and based in Santa Clara, California.

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PCI Express

PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X, and AGP bus standards.

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Video card

A video card (also called a display card, graphics card, display adapter or graphics adapter) is an expansion card which generates a feed of output images to a display (such as a computer monitor).

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The list above answers the following questions

PCI Express and Titan (supercomputer) Comparison

PCI Express has 159 relations, while Titan (supercomputer) has 114. As they have in common 7, the Jaccard index is 2.56% = 7 / (159 + 114).

References

This article shows the relationship between PCI Express and Titan (supercomputer). To access each article from which the information was extracted, please visit:

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