POWER6
The POWER6 is a microprocessor developed by IBM that implemented the Power ISA v.2.03. When it became available in systems in 2007, it succeeded the POWER5+ as IBM's flagship Power microprocessor. It is part of the eCLipz project, said to have a goal of converging IBM's server hardware where practical (hence "ipz" in the acronym: iSeries, pSeries, and zSeries).
History
POWER6 was described at the International Solid-State Circuits Conference (ISSCC) in February 2006, and additional details were added at the Microprocessor Forum in October 2006 and at the next ISSCC in February 2007. It was formally announced on May 21, 2007. It was released on June 8, 2007 at speeds of 3.5, 4.2 and 4.7 GHz, but the company has noted prototypes have reached 6 GHz. POWER6 reached first silicon in the middle of 2005, and was bumped to 5.0 GHz in May 2008 with the introduction of the P595.
Description
The POWER6 is a dual-core processor. Each core is capable of two-way simultaneous multithreading (SMT). The POWER6 has approximately 790 million transistors and is 341 mm2 large fabricated on a 65 nm process. A notable difference from POWER5 is that the POWER6 executes instructions in-order instead of out-of-order. This change often requires software to be recompiled for optimal performance, but the POWER6 still achieves significant performance improvements over the POWER5+ even with unmodified software, according to the lead engineer on the POWER6 project.
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by Pro Era
Spancil Hill
by: BrierLast night as I lay dreaming of pleasant days gone by
Me mind being bent on rambling, to Ireland I did fly
I stepped on board a vision, and I followed with a will
'Til next I came to anchor at the cross at Spancil Hill
It being on the 23rd of June, the day before the fair
When Ireland's sons and daughters and friends assembled there
The young, the old, the brave and the bold came, their duty to fulfill
At the parish church in Clooney, a mile from Spancil Hill
I went to see me neighbors, to see what they might say
The old ones were all dead and gone, the young ones turning gray
But I met the tailor Quigley, he's as bold as ever still
Ah, he used to mend me britches when I lived in Spancil Hill
I paid a flying visit to my first and only love
She's as white as any lily, gentle as a dove
And she threw her arms around me saying, "Johnny, I love you still"
As she's Nell the farmer's daughter and the pride of Spancil Hill
I dreamed I held and kissed her as in the days of yore
Ah Johnny, you're only jokin', as many's the time before
Then the cock, he crew in the morning, he crew both loud and shrill