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Max-Hardware_Numb3rs

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Posts posted by Max-Hardware_Numb3rs

    Zen SuperPI 32M 5G/4G Challenge

    in Ryzen | Bristol Ridge AM4

    Posted

    5 minutes ago, KaRtA said:

    Had a chance today with what LN2 I had left. Took a good 30L in total just today.

     

    So many runs just short of the 6 minute mark for so long, its awesome to have actually done it now.

     

    Sorry Max, got past you.

    https://hwbot.org/submission/4324190_karta_superpi___32m_ryzen_9_3900x_5min_58sec_509ms

    I told you that you had everything to make it! Well done ? 

    I'm very happy you got past me, I’ve done the first step towards the 6m gate and that was my goal, but also was like when you finish a good tv series, felt empty ?

    So our “fight” is still on, I’ll try to get better!

    again congratulation an welcome to our exclusive AMD Spi Sub 6 Club ?
     

     

    • Like 1

    Hardware_Numb3rs - Ryzen 9 3950X @ 5852MHz - 5min 58sec 909ms SuperPi - 32M

    in Result Discussions

    Posted

    Thanks all! ?

    6 hours ago, KaRtA said:

    Congrats man. I’ve been retesting 2700x as my 3900x didn’t have the clocks to get there. Onwards and upwards.

    Thanks! You are so colse, and your 3900X with 1600 flck is perfect for this task, 33mhz of flck is worth more than 100mhz core, if I were you I'll retry with that CPU, after 5750MHz I had no gain, I used that frequency just in case since the first CCD of this CPU is super strong, but the main trick is flck, subtimings an the right waza combination, I'm 100% sure you can do it. I'll post some screens in the SPI thread later today of the other runs I made.

    6 hours ago, unityofsaints said:

    Well done. It was a tight race but for Italy beat Australia for a change ;)

    Small satisfactions :D 

    2 hours ago, KaRtA said:

    @Leeghoofd Can we separate global's between Intel and AMD for SuperPi, would get more people running it.

     

    People don't understand the time, cost and effort this really takes. I took an easy 100L+ of LN2 to fall 0.115s short of breaking the 6min mark.

    That should be nice, doing a sub 6m is super challenging technically, I've used more than 120/150L since last year to get here, the OS must be well optimized, the bios and memory as well needs to be perfect, and to push the highest flck you have to manage the CB, in my case I had flck CB at -189 (with 1.66V soc risking to fry the IMC) and at -185 I was losing stability in the CPU core, I've spend more than 3 hours dropping little amounts every 20-30s to stay between -187 and -188, plus the tweaks settings and all. Is definitely fun if you like the hardcore mode :D the 6m wall is not only a psychological wall, it seems also a platform wall, I got 6/7 runs at 6.0.xxx before this sub, making more people doing it sounds like a great idea.

    I did this score with like a half thermos left of LN2, so a certain amount of luck is required :D

    • Like 1

    Zen SuperPI 32M 5G/4G Challenge

    in Ryzen | Bristol Ridge AM4

    Posted

    On 12/23/2019 at 8:03 PM, chew* said:

    c9 might not be as fast as c10. It wasn't on zen1 at least according to the data I collected. at 1333 c9 is easily doable yet I did not use it ;)

    I always follow the philosophy I got from tony @ OCZ. Use what IS fast not what you THINK is fast.

    That's why we tested multiple boards under multiple speeds etc etc etc. I must have tested at least 10+ motherboards on zen 1. Even cpu's impacted the results, tested a lot of those 2. 

    Example I ran multiple tests last week with 3800x over 3900x. The closest I could get was within 1 second of 3900x on good runs and more often than not it was 2 secs slower.

    I think the largest problem with 32m pi and zen 2 will be the inability to use very low dividers and bumping back up via ref clock to get the boards to "train" at tighter inaccessible "settings" when you go cold to make up for the lack of speed. You can try this on intel and pay attention to RTL in AMD land I think it was MRL on older arch. Not sure if they call it that anymore on AMD but I know as of now and zen1 its not accessible in bios or software but is via lower dividers and ref clock.

    On zen+ it may not work because its not achieved natively but on a chip separating PCI but I never tested it so who knows.

    I also know on zen1 when we set timings they had no effect at higher speeds but when we used a lower divider + ref clock to "trick" the cpu they actually worked.

    I can guarantee you 1 thing for certain. The OS is hardly optimized. I'm not even using max mem. The "spectacle" others put on about the OS was a bunch of dogs barking up the wrong tree. I found it mildly amusing for a little while but the amusement wore off quickly as the drama escalated and I decided to go back to hibernating as that's what's best for me to avoid drama.

    The only thing people really did not try was a giga or asrock to beat us and we never used the asus to try to beat anyone ( I had it, it was slow cpc ). The asrock and giga used a ref memory trace layout. the asus did not....the asus clocked higher and easier. quite obvious what was going on. they slacked board to "gain" visual speed.

    This is why infras fastest run is with very high refclock and high mem speed. He got the MRL or whatever they call it now down and bypassed all the slacking crap asus did to achieve higher speeds than other boards could do.

    Also as to why we didn't bother with ref at 3333-3400 was simple. our boards were not very fond of over 110 and you needed 1866/2133/2400 dividers to get the real gains. 2933 gained nothing and 2666 was not all that fast either.

    Once again use what IS fast not what you THINK is fast.

    These cpus have a lot of features that can be used towards your advantage. I believe error correction is 1 so using maxmem to gains stability because your actually unstable....I wonder how that works with the cpu's error correction feature ;)

    You are right, lower timings doesn't mean necessarily faster, so I've switched back to C10, and now testing with 1566 fclk 3133 ram, wich is around my max flck at fullpot with the cpu I'm using right now (3950X).

    I'm still optimizing a bit of everything and the os I'm using is not at his best since I'm doing the tests remotely with VNC :) but so far I have this:

    4500MHz: 7m32s557

    4600MHz: 7m23s834 (-8,723)

    4700MHz: 7m15s834 (-8,016)

    I have only few results so I can't trace correctly the gain per 100MHz, but the efficiency doesn't seem bad, considering the Os I'm using.

    I tried as well the Asrock X570 Taichi, and some Gigabyte B450/X470 but I didn't see any particular deficit of performance of my CH8 right now, I used as well 118 blck with 2400 and lower dividers but again it seems not so different, at least at ambient clocks

    There are some interesting bios features that I'm exploring tho, but I can't say at now how much is helping the score.

    This CPU have the 1st CCD very very strong, so I might have at this point a good base to try the sub 6m, maybe I can do an LN2 session even tonight to see the behavior at "high altitude"

    Keep you posted :)

    The official Country Cup 2019 - 10th Anniversary Edition thread.

    in HWBOT Competitions

    Posted · Edited by Hardware_Numb3rs

    This competition was hard, and intense, in Italy we built a strong group, we learned a lot, we laughed a lot and we also pushed a lot to keep the bar raising, I can't be more happy and proud for being part of this great team.

    I want to thank the Germans, for their hard work and for battling with us since the beginning, this is for me the real spirit of competitions, do your best and get surpassed, set up the hardware again and push harder, trying to squeeze more points over and over again, until the end. Well done!

    I have to say that I'm a bit disappointed by the "last minute win", we all knew that it was coming, but honestly,  what's the point of staying in the shadows until the last hours of a competition? Especially when you have great clockers, join the game, have fun with us, or the perception is that you are just interested to grab the gold medal and run away, when the main goal here should be to actually challenge each others for a couple of months.

    Congratulations for your first place,  but I would have preferred to congratulate you for having fun with us and winning the comp.

    Last but not least, a big thanks to the organizers, this is an enormous amount of work on your shoulders, and not an easy job to do to make this works, so again, thanks!

    I wish you all a Happy New Year, full of good benching sessions and success ?

    Max

    • Like 11
    • Thanks 1
    • Confused 1

    Zen SuperPI 32M 5G/4G Challenge

    in Ryzen | Bristol Ridge AM4

    Posted

    The problem with Zen2 and ln2 is the fabric, hard to get above 1466, and for the best latency we must run 1:1, with A2 sticks I can go down to C9 but still at the end there’s not a big difference with Zen+ 

    What I can see from your runs is that your Win7 is very well optimized, in a way that nobody here can do :)

    • Like 2

    Zen SuperPI 32M 5G/4G Challenge

    in Ryzen | Bristol Ridge AM4

    Posted

    The sub 6 is tricky, as going up with the frequency the efficiency get worse, I think we need a 5850+ capable CPU or some OS tweak not yet discovered ? 

    Once I have my 3900X and the CH8 I’ll try again, in the meantime I want to build Win7 from scratch, but for spi is also difficult to tune, messing too much with the os damage the score.

     

    • Like 1

    Zen SuperPI 32M 5G/4G Challenge

    in Ryzen | Bristol Ridge AM4

    Posted

    2 hours ago, KaRtA said:

    LN2 delivery delayed until Monday now. Hopefully finish work early to play again then.

     

    @Hardware_Numb3rs do you have a 5ghz run saved? would like to compare for scaling between the different setups.

    I went directly for the max clock, I have another screen with another core at 5800, but 2 second slower, I didn't try much experiments or efficiency, with the CBB at -27 the LN2 waste was enormous, I think I burned almost 20L and like 5 hours, now there's a new official bios, I will have the CH8 next week to play with, really hope to get rid of the issue.

    Zen SuperPI 32M 5G/4G Challenge

    in Ryzen | Bristol Ridge AM4

    Posted

    I managed to do fullpot with ram at 2800 C9 1:1,  without LN2 mode, 5630 all core 1.67V (new first place in CB15 for the 3800X), so I think 2933 C9 is going to be possible, also disabling some cores I might be able to make a fast Spi32M run, I’ll try tonight, see if with 5700+ MHz I can break the 6min barrier 

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