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[Xbitlabs] Ex-AMD Engineer Explains Bulldozer Fiasco: Lack of Fine Tuning - Page 5

post #41 of 51
Thanks for posting. Nice explanation! Looking forward to the next batch from Intel/AMD to see how big of a step forward they can make.
    
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post #42 of 51
@tator tot.

so these global foundries mishaps could actually be causing the internals of the chip to not "communicate" properly and be extremely inefficient at the same time?
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post #43 of 51
Quote:
Originally Posted by t00sl0w View Post
@tator tot.

so these global foundries mishaps could actually be causing the internals of the chip to not "communicate" properly and be extremely inefficient at the same time?
No. The chips would invariably be unstable if it was a production problem.
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post #44 of 51
my 95 jeep is very stable but the gas milage sucks
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post #45 of 51
Quote:
Originally Posted by dzalias View Post
No. The chips would invariably be unstable if it was a production problem.
However possible issues with cache thrashing and power consumption could be production problems.
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post #46 of 51
Quote:
Originally Posted by formula m View Post
Exactly^

U don't need a marketing department, if u have an over abundance of talented engineers. Their geekness alone solidifies a solid product.

Which in return, is how u first influenced investors. Now that you have people on the board of directors, a Company is no longer about it product.

It sometimes becomes about egoes.
Your statement is not entirely true. While competent engineers can make a product, you'll be amazed at the power of "the Marketing Department".

Oh how MANY intel fanboys forget so quickly. A recent Intel failed development project called Larabee. Guess who was running the show on that project?
post #47 of 51
I hope AMD/GlobalFoundries gets everything together, I had high hopes for BD, and still do. But sorry AMD, you don't have the best support for motherboards, Intel-sided has all the features
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post #48 of 51
Preface: It's 6 AM and I've been playing Halo Reach all night with the mates.
Quote:
Originally Posted by kartcrg84 View Post
Just because hand crafting/automated design didn't cause the delays doesn't mean that hand crafting as apposed to automated design would have caused things to take even longer.
Except they didn't, issues with production and process caused the delays. As well as some (semi)poor design decisions on AMD's part. To a large extent, AMD was too forward thinking in design.
Quote:
Originally Posted by CULLEN View Post
The questions is, do you see your self with BD any time soon? Please explain.
I've got a pre-production sample. It's a good chip, can do 5.5Ghz on cheap DIY water solutions (like a RASA RX240.)

My current rig is mATX and I'm not even going to try and take it apart to put BD inside it. If I was running a tower, I most likely would, and I would disable core 1,3,5, & 7 so that I could obtain higher IPC.
Or set Core Affinity for most tasks to Core 0, 2, 4, & 6.

If I was looking to upgrade from what I had and performance was my only concern (usually is.) Then I would most likely just put more money into a better/faster GPU instead of BD.
For gaming purposes, Thuban does just fine. This particular chip can do 4.4Ghz easy on a Silver Arrow so I've not really got a workload that demands more of my system than what the CPU can produce.

Quote:
Originally Posted by t00sl0w View Post
@tator tot.

so these global foundries mishaps could actually be causing the internals of the chip to not "communicate" properly and be extremely inefficient at the same time?
No, high leakage (which increases power draw & heat output) is an issue of the wonky process. Though, if you had a communication breakdown (like the first generation of Phenom chips) then it's most likely an on chip issue. Not a process/manufacturing issue.
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post #49 of 51
Quote:
Originally Posted by kartcrg84 View Post
I think that it is also important to keep in mind that had AMD hand crafted more of there processors, Bulldozer would have been delayed even more, since hand crafting generally takes longer. I think that if AMD had taken any longer to release Bulldozer, they would be in even worse shape. As it stands, at least they have something on the market that the average stupid consumer will buy.
They have finished original BD more than nine months ago, which performed like now. They respin it few times but result was the same, performance wise. Realizing it can't be fixed with more respins, another delay after all those delays was not am option, so they released it. It takes less than nine months to hand craft it.
Edited by Kauke - 10/15/11 at 5:10am
post #50 of 51
Quote:
Originally Posted by Tator Tot View Post
See, the article gives you that idea, but it's wrong.

Bulldozer Delays are almost entirely on Global Foundries 32nm process being bugged.

Like wise, Intel uses Automated design on their Sandy Bridge chips. They've been doing Automated Design on most chips since the Conroe days, 6 years ago.
Power efficency can be blamed, yes, performance - no. Read my previous reply above.
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