Porting from Solaris to PPC Linux

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Mar 062005

A IBM developerWorks article offers suggestions for Solaris software developers, including differences in endianness, toolchains, Java, system calls, and signals.

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MareNostrum: PPC970 supercomputer

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Feb 182005

The February Power Architecture Community Newsletter is out. Though light on technical details, it describes how IBM built MareNostrum, currently one of the most powerful supercomputers in the world, in less than a year using Linux on off-the-shelf 970FX-based JS20 blade servers.

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CentOS for ppc32

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Feb 152005

Looks like the CentOS folks just recently released a beta for PowerMac, including some “alpha quality” Mac Mini support. CentOS is a freely distributable OS built from Red Hat Enterprise Linux source, for people who want stability without the cost of certification and support.

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More Cell Details

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Feb 112005

This long article takes an even more detailed look at the first Cell processor’s architecture, including the interconnect, the lack of branch prediction in the coprocessors, similar simplifications in the main ppc64 core, and the Rambus memory controller.

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x86 vs PowerPC: Early Boot Comparison

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Feb 112005

developerWorks has a new article up highlighting some of the differences in the boot process on x86 and PowerPC, with an emphasis on firmware and embedded systems.

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Serious Cell Explanation

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Feb 092005

Now that IBM is presenting the Cell architecture at the International Solid-State Circuits Conference this week, Ars Technica has jumped in with some serious technical information, including the SIMD processing units and the Cell Architecture.

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Cell Processor Announced

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Feb 082005

For a pleasant change, actual substantiated information about the upcoming Cell processor has been announced at the International Solid-State Circuits Conference. Cell will contain a 64-bit Power processor, ridiculous memory bandwidth via a Rambus XDR memory bus, and will first ship in the PlayStation 3, but could see other uses in the future. Additional coverage is also available with slightly more technical information.

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OpenPower 710

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Jan 252005

The original OpenPower model was the 720: 4U rackmount, 1-4 way POWER5, $5000 starting price. IBM has just announced the next model, the 710: 2U rackmount, 1-2 way POWER5, $3500 starting price, making POWER5 servers even more accessible to the budget-conscious…

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Cell Architecture Explained

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Jan 212005

A breathless and at times speculative explanation of the upcoming Cell processor architecture, designed by IBM, a couple Sonys, and Toshiba. Cell will contain multiple coprocessors along with a 64-bit Power processor core, and workloads that can take advantage of the coprocessors (such as multimedia) are expected to be very fast.

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PowerPC Emulation

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Jan 202005

A new developerWorks article describes some PowerPC emulators, for all those PPC-curious x86 users…

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