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wrc1944
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PostPosted: Wed Oct 11, 2017 4:50 pm    Post subject: Reply with quote

This looks really interesting. :D
https://www.phoronix.com/scan.php?page=news_item&px=AMD-GCC-More-Zen-Patches

Quote:
A few days back I initially wrote about a SUSE developer working on Zen tuning patches for GCC. That work has continued with more compiler patches coming for optimizing the GNU's compiler for Ryzen / Threadripper / EPYC processors.

Jan Hubicka of SUSE has continued posting more patches for tuning Zen for GCC and underlying code improvements for GCC in dealing with CPU-specific optimizations.

Among the work includes simplifying some code, avoiding 512-bit memcpy/memset for AVX-128 optimal targets, disabling Bulldozer dispatch scheduling, and better managing around CPU specific optimizations.


simplifying some code
https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00272.html

avoiding 512-bit memcpy/memset for AVX-128 optimal targets:
https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00427.html

disabling Bulldozer dispatch scheduling:
https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00428.html

better managing around CPU specific optimizations:
https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00624.html
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krinn
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Joined: 02 May 2003
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PostPosted: Thu Oct 12, 2017 12:40 pm    Post subject: Reply with quote

wrc1944 wrote:
I am currently arranging a pre-paid FedEx return label to return your CPU back to AMD free of charge - It will be emailed to you shortly.
Please print the label and attach it to the return package and arrange pick up or drop off through your local FedEx service centre. As soon as I receive your confirmation that your CPU is in transit, I will have the replacement part shipped out immediately.

The good part: the pre-paid cost is nice, it should be "normality" that they do that, but someone earlier report it wasn't (in France, it's not only natural, but our laws impose that, customers are protect by law against faulty per design product for 2 years, and the protection include shipping costs).

What is less good is that if you trust what they say, you have sent them confirmation of the return product Oct.6 and so they should have process Oct.6 to send you the replacement.
However this would contradict this:
Quote:
upon arrival at the AMD Returns Center, and must pass this inspection
before your warranty claim can be approved

If they need to check your cpu is ok before sending a new one, this cannot be before they have it in hands :)

I'm pointing the weak logic there, i would myself find it also "all ok, i'm happy" if i were in your case too, because even they will in real wait for my cpu to pass their tests and a few more delays, i would find it really good that they sent me pre-paid return label.
Even without french law forcing them, if you consider it: you have brought the product including its shipping costs already, if they ask you to pay shipping costs for replacement, it's like forcing you to pay 2x times shipping costs, which might have change its value in your eyes and might even let you not brought it at first.
It's a case when you are just happy that "the normality" is use, when in real, you have nothing to be happy about, as you didn't get any reward to excuse the troubles.
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wrc1944
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PostPosted: Thu Oct 12, 2017 2:26 pm    Post subject: Reply with quote

krinn,
Thanks for the comments. :)
I agree, they should have either shipped out an RMA, or at least replied they received my shipping confirmation email so I wouldn't sit around wondering if they even got it. Anyway, I'm reasonably happy, and will chalk it up to weekend delays and/or maybe they are having problems with maintaining enough RMA stock and are actually testing the RMA replacement cpus before they send them out, which is fine with me. I'd really hate to get an RMA chip that itself needed to be RMA'd.

However, I just got an update , which seems to say they actually tested my 1707SUT chip I sent them, and that they are going to send me a replacement, but doesn't say precisely when it will be shipped, as they say: "when your replacement product is ready to ship." Leaves one wondering if they mean only the time to package it up and drop it off at FedEx, or that they currently don't actually have any non-segfaulting post UA 1725 chips available at that RMA service center. Anyway, at least I now know I should getting a fully functional chip, and apparently won't be paying any shipping charges. :D
Oct. 12:
Quote:
This is an automatically generated email please do not reply

Product Serial# Result
______________________________________________________________

YD1700BBAEBOX 9GU4895N70046 TEST/INSPECTION PASSED

Next Steps

You will receive an Email notification when your replacement product is
ready to ship.

Best regards,

AMD Global Customer Care.

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krinn
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PostPosted: Thu Oct 12, 2017 3:14 pm    Post subject: Reply with quote

wrc1944 wrote:
and are actually testing the RMA replacement cpus before they send them out, which is fine with me.

hihi i don't think anyone has anytime to do that: they produce fixed cpu and can safely assume the fixed product is ok (it should have pass their own tests already, which would be resume to test a random unit every X units produce)
I think the tests they are speaking off, are not on the new cpu, but on your "old" one. While they don't really need to actually test that what you describe is true (they are totally aware of it, and they are producing fixed cpu because of that), their tests is to check if you from your side didn't do anything stupid.
It's not because they are aware your cpu is buggy, that they will replace it if you have done silly things with it : run it at 1000000ghz, sending them a false cpu (a copy), crush it with an hammer...

So unlike what you think, you might get a fixed new cpu that need rma

For the time it should take now that your cpu has been validate, they already gave you the answer
Quote:
Once you have received this notification email and your processor(s)
pass the VM inspection, it usually takes approximately 2 business days
for your replacement part to ship. You will receive your
replacement(s) approximately 3-5 business days from the ship date from
the AMD Returns Center, depending upon your location.


Put a big cross in your calendar at Oct. 19, and start getting mad each day when you get up :D
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wrc1944
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PostPosted: Thu Oct 12, 2017 4:51 pm    Post subject: Reply with quote

Yeah- I agree that what the AMD emails were referring to was the testing of my 1707SUT cpu I sent them.

Over the last few weeks I was reading on the (currently 119 page) amd.community.com Ryzen segfault thread as well as several in depth reddit.com ryzen threads, and there was discussion and a belief that AMD was indeed testing the cpus they sent out as RMA replacements on indentical mobos/systems to insure they would actually solve the problems.

That's the reason I mentioned it, and it was also postulated that was one reason for some long delays, but of course we wouldn't know that was true, or not, unless an AMD representative actually confirmed it. Not to mention there are a few reports of post week 25 RMA's still having segfault and other issues, but again those might be caused by other problems, and not the cpu, per se.

Guess I won't know until I get the RMA replacement and do my own testing, but I'm pretty optimistic and think AMD would make serious efforts to be sure they didn't send a faulty cpu out to an RMA customer.
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Samsung SATA 1000GB, Radeon HD R7 350 2GB DDR5
Gentoo ~amd64 plasma, glibc-2.25-r7, gcc-7.1.0-r1 kernel-4.13.5 gentoo USE=experimental


Last edited by wrc1944 on Fri Oct 13, 2017 3:53 pm; edited 1 time in total
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mir3x
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PostPosted: Thu Oct 12, 2017 5:25 pm    Post subject: Reply with quote

wrc1944 wrote:

Guess I won't know until I get the RMA replacement and do my own testing, but I'm pretty optimistic and think AMD would make serious efforts to be sure they didn't send a faulty cpu out to an RMA customer.


They are not testing lately, some users reported earlier that there was even thermal paste on cpu, but in last month seems everyone got not tested.
Let's hope u get new CPU before weekend.

Amd has just big mess: they sent to me lately:
Code:
AMD RMA# 2000241259 15-Day Reminder
This is a courtesy notice from AMD Global Customer Care with regards to
Warranty Request RMA# 2000241259. for your AMD retail packaged
 Processor(s) in a Box.


    Product         Serial#         Result
    ______________________________________________________________

    YD170XBCAEWOF  9R64481N70184      RETURN NOT RECEIVED


    Your warranty replacement processor was sent to you as part of the AMD
    Advanced Warranty Fulfillment service which is offered as a privilege
    to our warranty service, if we do not receive the original processor
    within the next 15 business days, we may not be able to continue to
    extend this privilege to you in the future.


Funny fact: when I opened new BOX - I see only black "WTF Box is empty I think" ( Box is black inside, on bottom I found another small black box with cpu a while later)

I noticed new CPU temperature is very stable, on idle it stays 29, sometimes might change to 30 or 31, with old one it was changing randomly temperature like 2 times per second from 25 to 35. Also similiar behaviour was with voltages shown in bios. Seems old one had ADHD :D
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wrc1944
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PostPosted: Mon Oct 16, 2017 10:02 pm    Post subject: Reply with quote

My 1700 RMA update. I shipped my cpu on Oct.6,and AMD Service Center in Miami actually received my package Oct. 9, and I got email confirming on Oct.11.
Then, received an email on Oct. 12 saying test/inspection passed, and to expect an email saying the replacement is ready to ship.

However, I got no such email, but today (Oct 16, Mon.), my RMA arrived, and was a full retail 1700 package, including another nice Wraith cooler. A pleasant surprise. :D

So my total downtime wound up being 10 days, which included 2 weekends (non-business days), so I guess you could say that's only a six business-day turn-around. All in all, I consider this great service. The new 1700 details are:
Code:
YD1700BBM88AE

UA 1733SUS

9GY8049U70255
Diffused in USA
Made in China
Now the fun begins. For the time-being I think I'll keep C-state disabled as I've been seeing week 172x and 173x processors are still showing freezes without it disabled. First, need to get both my Gentoo installs up-to-date with the kde, kernel, and assorted other updates, and then maybe run some preliminary tests and see how it shakes out.

For anyone considering doing an RMA, my experience was great, and I'm convinced doing the testing beforehand and then detailing it for AMD support when you send in the RMA request makes a big difference.

BTW, anyone know if a Wraith cooler will fit on a Gigabyte GA-990FXA-UD3 ver.4 AM3+ motherboard running an 8320FX?

UPDATE: Just did an emerge -uDN @world which had 343 packages, including glibc, mesa, the new qt (includes the huge qtwebengine package) & all the big kde updates, plus lots of other major packages prone to segfaults, and the new RMA week 33 1700 chewed thru them at 44C. or less, no problems.

Plus, and most importantly, my main test which was gcc-7.2.0 that always had a segfault on my UA 1707 chip. This time compiled perfectly in record time, which I think in my case confirms the 1707 chip was the cause of the segfaults. :D

This was with defaults on the AGESA 1.0.0.6b BIOS which includes SMT (16 threads) & Opcache enabled, and as I mentioned I disabled C-states for the initial testing. Next round I'll enable XMP profile and fool with RAM settings. I'm happy to confirm that in my case AMD has certainly stood by its product, and its customer- I'm completely satisfied.

UPDATE 2: just updated my other Gentoo install on this box after updating to gcc-7.2.0 first. Entire 343 package @world update compiled perfectly with 7.2.0. Again the new week 33 1700 processor performed flawlessly. :D
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