<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class=""></div> BTW: In the table<div class=""><br class=""></div><div class=""><table class="table geekbench3-index" style="box-sizing: border-box; width: 1110px; margin-bottom: 1rem; color: rgb(33, 37, 41); border-spacing: 0px; caret-color: rgb(33, 37, 41); font-family: "Helvetica Neue", Helvetica, Roboto, LucidaGrande, Arial, sans-serif; font-size: 14px;"><tbody style="box-sizing: border-box; border-top-width: 2px; border-top-style: solid; border-top-color: rgb(222, 226, 230);" class=""><tr style="box-sizing: border-box;" class=""><td class="added" style="box-sizing: border-box; padding: 6px; vertical-align: middle; border-top-width: 1px; border-top-style: solid; border-top-color: rgb(222, 226, 230); width: 120px;"><span class="timestamp-to-local-min" style="box-sizing: border-box;">Oct 18th, 2021</span></td><td class="model" style="box-sizing: border-box; padding: 6px; vertical-align: middle; border-top-width: 1px; border-top-style: solid; border-top-color: rgb(222, 226, 230); width: 240px;"><a href="https://browser.geekbench.com/v3/cpu/8966621" style="box-sizing: border-box; color: rgb(6, 127, 192); text-decoration: none;" class="">ASUS System Product Name</a><span style="box-sizing: border-box; display: block; font-size: 11px;" class="">Intel Core i9-11900K 3504 MHz (8 cores)</span></td><td class="platform" style="box-sizing: border-box; padding: 6px; vertical-align: middle; border-top-width: 1px; border-top-style: solid; border-top-color: rgb(222, 226, 230); width: 125px;">Windows 32-bit</td></tr></tbody></table><div class=""><br class=""></div><div class=""> 32 bit WTF?</div><div class=""><br class=""></div><div><br class=""><blockquote type="cite" class=""><div class="">On Oct 18, 2021, at 6:02 PM, Barry Smith <<a href="mailto:bsmith@petsc.dev" class="">bsmith@petsc.dev</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><br class=""> Thanks, presumably we'll see the new Mac's there in a few days. BTW: the old streams benchmark page should point to this site; google is worthless.<br class=""><br class=""> I get 24 on my Intel MacBook Pro and it also saturates with 1 core.<br class=""><br class=""> Barry<br class=""><br class=""><br class=""><blockquote type="cite" class="">On Oct 18, 2021, at 4:48 PM, Jed Brown <<a href="mailto:jed@jedbrown.org" class="">jed@jedbrown.org</a>> wrote:<br class=""><br class="">I don't have one, but this suggests it gets about 40 GB/s and can be saturated by a single core. I believe it uses two channels of LPDDR4X-4266, which has a theoretical peak of 68 GB/s.<br class=""><br class=""><a href="https://browser.geekbench.com/v3/cpu/8931693" class="">https://browser.geekbench.com/v3/cpu/8931693</a><br class=""><br class="">The press release claims up to 400 GB/s on the Max using DDR5. I assume that's calculated based on 8 channels of LPDDR5-6400, which seems like a surprisingly big step and I'm skeptical of what will actually be realized.<br class=""><br class="">Barry Smith <bsmith@petsc.dev> writes:<br class=""><br class=""><blockquote type="cite" class=""> Can anyone who owns an Apple M1 system run the MPI streams benchmark? Make sure the -O3 (or something) optimization flags are turned on.<br class=""><br class=""> Thanks<br class=""><br class=""> Barry<br class=""></blockquote></blockquote><br class=""></div></div></blockquote></div><br class=""></div></body></html>