Japan Captures TOP500 Crown with Arm-Powered Supercomputer

Post by akamoonknight » Mon, Jun 22, 2020, 6:22 PM UTC

gnufx wrote: post #110

akamoonknight wrote: post #107

Is there information on how the Fugaku machines are connected together? The highest performing Power9 ones seem to use InfiniBand, but is that still true with the ARM devices? Edit: seems to be a Fujitsu designed interconnect [0]. Wonder how much of the overall performance is dependent on the difference in communication. https://www.fujitsu.com/global/documents/solutions/business-...

I don't know whats the best reference, but here's one: https://www.fujitsu.com/global/Images/the-tofu-interconnect-...

Post by [deleted] » Mon, Jun 22, 2020, 6:30 PM UTC

ummonk wrote: post #99

jbverschoor wrote: post #94

Earlier quoted context omitted.

It shouldn’t be a manual code switch in the first place.

What else would it be? The authentication code would live somewhere. And for debugging someone could change it to always return successful for an empty password. That debugging change shouldn't be checked in of course, and it should have been caught in code review. (It's a reasonable oversight for the authentication unit tests to only test incorrect passwords rather than the edge case of empty passwords)

Post by [deleted] » Mon, Jun 22, 2020, 6:33 PM UTC

jbay808 wrote: post #21

davidhyde wrote: post #12

The site of the organisation responsible for assessing the fastest computers in the world succumbs to the hacker news hug of death.

To be fair, I wouldn't host my website on my world-class supercomputer either, if I had one...

Post by IncRnd » Mon, Jun 22, 2020, 6:37 PM UTC

mortenjorck wrote: post #54

I cannot think of any plausible way in which Apple could have influenced the date of this announcement, but the timing, given what is expected to be announced later today, is uncanny.

Post by chongli » Mon, Jun 22, 2020, 6:54 PM UTC

mortenjorck wrote: post #54

I cannot think of any plausible way in which Apple could have influenced the date of this announcement, but the timing, given what is expected to be announced later today, is uncanny.