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 Showing results 1 to 25 of 1000 Search took 0.37 seconds. Search: Posts Made By: fivemack
 Forum: Aliquot Sequences 2021-09-18, 11:02 Replies: 3,574 Views: 361,078 Posted By fivemack Drop 1193460 (2^4 * 311 * ready-for-GNFS C143) Drop 1193460 (2^4 * 311 * ready-for-GNFS C143)
 Forum: Aliquot Sequences 2021-09-12, 22:10 Replies: 3,574 Views: 361,078 Posted By fivemack Drop 1061748 (2^3*3^2, ECMed C140) Drop 1061748 (2^3*3^2, ECMed C140)
 Forum: Aliquot Sequences 2021-08-30, 21:52 Replies: 3,574 Views: 361,078 Posted By fivemack Drop 1286640 (142 digits, 2^5*3^2*7) Drop 1286640 (142 digits, 2^5*3^2*7)
 Forum: Aliquot Sequences 2021-08-27, 20:21 Replies: 3,574 Views: 361,078 Posted By fivemack Drop 785142 (2^3*3^2, reasonably-ECMed C139) Drop 785142 (2^3*3^2, reasonably-ECMed C139)
 Forum: Aliquot Sequences 2021-08-27, 20:20 Replies: 3,574 Views: 361,078 Posted By fivemack Drop 2541810 (2^2 * 3^3 * reasonably-ECMed C147) Drop 2541810 (2^2 * 3^3 * reasonably-ECMed C147)
 Forum: Aliquot Sequences 2021-08-15, 20:59 Replies: 3,574 Views: 361,078 Posted By fivemack Take 558360 Take 558360
 Forum: Msieve 2021-08-07, 11:10 Replies: 52 Sticky: Msieve GPU LA Views: 2,535 Posted By fivemack Interesting! That's about a p3.8xlarge instance,... Interesting! That's about a p3.8xlarge instance, for which the spot price is $4/hr, so that's$84 = £60 to solve the matrix. I'm paying 19p/kWh here, and my Skylake machine uses about 250W and...
 Forum: Aliquot Sequences 2021-08-07, 09:37 Replies: 3,574 Views: 361,078 Posted By fivemack Take 1432980 Take 1432980
 Forum: Aliquot Sequences 2021-08-03, 08:09 Replies: 3,574 Views: 361,078 Posted By fivemack Take 785142 Take 785142
 Forum: Aliquot Sequences 2021-07-31, 21:31 Replies: 3,574 Views: 361,078 Posted By fivemack Take 1286640 Take 1286640
 Forum: Soap Box 2021-07-24, 22:32 Replies: 87 Views: 6,301 Posted By fivemack I don't think the fires put particles high enough... I don't think the fires put particles high enough up into the atmosphere - there's the tropopause between the troposphere and the stratosphere, which obstructs the movement of particles either...
 Forum: Aliquot Sequences 2021-07-24, 17:07 Replies: 3,574 Views: 361,078 Posted By fivemack Take 613872 791220 Take 613872 791220
 Forum: Aliquot Sequences 2021-07-24, 16:58 Replies: 3,574 Views: 361,078 Posted By fivemack Drop 1057932 (2^2 * 3 * 19 * C140 which has... Drop 1057932 (2^2 * 3 * 19 * C140 which has survived 7000@3e6)
 Forum: Software 2021-07-16, 09:29 Replies: 36 Views: 1,724 Posted By fivemack Yes, the normal Linux enumeration is 0 to 2N-1 as... Yes, the normal Linux enumeration is 0 to 2N-1 as physical cores, N in each socket, and 2N to 4N-1 as the logical cores - I determined this rather tediously by running two copies of ECM at a time and...
 Forum: Software 2021-07-10, 18:50 Replies: 36 Views: 1,724 Posted By fivemack I'd be surprised if you could get anything much... I'd be surprised if you could get anything much higher performance ... the board won't support the bizarre Platinum 92xx dual-chip packages, and the absolutely highest performance Platinum 82xx is 28...
 Forum: Aliquot Sequences 2021-07-10, 09:53 Replies: 3,574 Views: 361,078 Posted By fivemack Drop 2385042. 2^2 * C141 which has survived my... Drop 2385042. 2^2 * C141 which has survived my usual 7000@3e6.
 Forum: Software 2021-07-09, 13:59 Replies: 36 Views: 1,724 Posted By fivemack Are these the same CPUs as... Are these the same CPUs as https://www.ebay.co.uk/itm/154497112899 ? I was expecting there to be a catch, if they work well I'll pick myself up a pair. I've got a Supermicro Skylake system which...
 Forum: Aliquot Sequences 2021-07-05, 13:38 Replies: 3,574 Views: 361,078 Posted By fivemack Drop 995280. Driver 2*3, C148 has survived about... Drop 995280. Driver 2*3, C148 has survived about 7000 curves at B1=3e6
 Forum: Msieve 2021-06-27, 13:05 Replies: 5 Views: 466 Posted By fivemack Well, that's not actually the cause; the vpxor... Well, that's not actually the cause; the vpxor xmm0,xmm0,xmm0 instruction is in fact defined as clearing the top half of the register (whilst the superficially similar pxor xmm0,xmm0 is defined as...
 Forum: Aliquot Sequences 2021-06-27, 09:43 Replies: 3,574 Views: 361,078 Posted By fivemack Take 2541810 Take 2541810
 Forum: Msieve 2021-06-27, 09:35 Replies: 5 Views: 466 Posted By fivemack I am just downloading gcc-11.1 in the hope that... I am just downloading gcc-11.1 in the hope that it will be equipped with a sufficiently heavy-duty yak razor
 Forum: Msieve 2021-06-26, 22:23 Replies: 5 Views: 466 Posted By fivemack This is driving me slightly mad: I made the... This is driving me slightly mad: I made the obvious tweaks to use a 2-bit rather than 8-bit table, it slowed down immensely, and this was because it wasn't using YMM operations at all, rather...
 Forum: Msieve 2021-06-26, 19:46 Replies: 5 Views: 466 Posted By fivemack Profile-driven optimisation for lanczos Has anyone got thoughts about the NxB times BxB multiply once VBITS grows big? My profile at the moment looks like 26.39% msieve-MP-V256- msieve-MP-V256-BDW [.] mul_BxN_NxB ...
 Forum: Aliquot Sequences 2021-06-26, 10:39 Replies: 3,574 Views: 361,078 Posted By fivemack Take 1057932 1142472 2385042 2993280 Take 1057932 1142472 2385042 2993280
 Forum: Aliquot Sequences 2021-06-23, 11:26 Replies: 3,574 Views: 361,078 Posted By fivemack Drop 2327016 Drop 2327016
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