Large matrix multiplication

Multiply two square matrices as fast as possible.

Input

Two 2000 x 2000 matrices of uint32 values on STDIN, encoded back-to-back in row-major order, little-endian byte order.

Output

Write the resulting 2000 x 2000 product matrix to STDOUT in the same binary format (row-major, little-endian uint32).

Restrictions:60s256Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.9	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

Back to listMar 16, 2026 22:15

Dominique GarmierScore: 4,764Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 20, 2026 09:09	4,661	734,567,023	668,167,000	30,961,000	17,145,856
2	Mar 20, 2026 10:22	4,664	727,968,317	672,722,000	26,948,000	17,063,936
3	Mar 20, 2026 09:09	4,669	728,187,811	669,353,000	30,970,000	17,051,648
4	Mar 20, 2026 09:09	4,671	733,150,650	664,668,000	35,928,000	17,076,224
5	Mar 20, 2026 09:28	4,677	735,993,956	664,558,000	36,919,000	17,100,800
6	Mar 20, 2026 10:22	4,677	728,714,183	670,649,000	30,937,000	17,051,648
7	Mar 20, 2026 09:09	4,678	729,868,136	674,752,000	26,950,000	17,039,360
8	Mar 20, 2026 09:09	4,681	726,066,548	666,185,000	35,956,000	17,047,552
9	Mar 20, 2026 09:28	4,684	731,063,428	667,627,000	34,928,000	17,158,144
10	Mar 20, 2026 10:41	4,685	733,651,589	675,784,000	26,951,000	17,043,456
11	Mar 20, 2026 10:16	4,685	731,890,230	674,769,000	27,949,000	17,006,592
12	Mar 20, 2026 10:27	4,688	728,386,382	674,275,000	28,968,000	17,129,472
13	Mar 20, 2026 08:27	4,691	732,838,893	667,680,000	35,929,000	16,994,304
14	Mar 20, 2026 10:37	4,693	737,574,516	669,014,000	34,948,000	17,047,552
15	Mar 20, 2026 10:41	4,693	735,437,244	671,972,000	31,951,000	17,166,336
16	Mar 20, 2026 10:37	4,696	730,725,290	669,367,000	34,966,000	17,047,552
17	Mar 20, 2026 10:27	4,698	733,745,011	670,765,000	33,937,000	17,051,648
18	Mar 20, 2026 10:16	4,699	730,725,025	674,906,000	29,951,000	17,072,128
19	Mar 20, 2026 09:09	4,705	735,536,835	669,879,000	35,939,000	17,047,552
20	Mar 20, 2026 10:16	4,709	738,573,179	675,453,000	30,929,000	17,043,456
21	Mar 20, 2026 09:09	4,711	733,194,584	679,717,000	26,949,000	17,072,128
22	Mar 20, 2026 10:27	4,715	737,928,702	679,219,000	27,967,000	17,047,552
23	Mar 20, 2026 10:41	4,715	737,480,679	679,328,000	27,972,000	16,957,440
24	Mar 20, 2026 10:37	4,721	741,872,117	675,130,000	32,957,000	17,137,664
25	Mar 20, 2026 08:27	4,722	735,109,266	680,355,000	27,973,000	16,961,536
26	Mar 20, 2026 09:15	4,730	742,677,681	682,543,000	26,942,000	17,014,784
27	Mar 20, 2026 10:22	4,735	738,594,716	682,323,000	27,972,000	17,133,568
28	Mar 20, 2026 09:09	4,738	741,984,539	679,689,000	30,940,000	17,047,552
29	Mar 20, 2026 09:15	4,739	743,664,866	671,964,000	38,939,000	17,076,224
30	Mar 16, 2026 22:15	4,741	735,932,454	674,158,000	36,953,000	17,154,048
31	Mar 20, 2026 08:38	4,752	739,728,672	684,844,000	27,952,000	17,051,648
32	Mar 20, 2026 08:27	4,752	737,490,509	678,849,000	33,942,000	17,006,592
33	Mar 20, 2026 08:54	4,755	743,067,042	684,257,000	28,968,000	17,039,360
34	Mar 20, 2026 10:22	4,757	744,521,691	680,577,000	32,931,000	16,949,248
35	Mar 20, 2026 09:15	4,758	749,482,739	686,748,000	26,950,000	17,047,552
36	Mar 20, 2026 10:22	4,760	742,060,900	683,013,000	30,955,000	17,035,264
37	Mar 20, 2026 09:11	4,760	743,694,103	683,077,000	30,958,000	17,059,840
38	Mar 16, 2026 22:05	4,760	738,608,484	683,986,000	29,955,000	17,010,688
39	Mar 16, 2026 22:05	4,761	737,936,040	686,140,000	27,964,000	17,051,648
40	Mar 20, 2026 09:11	4,761	741,348,096	684,255,000	29,967,000	17,047,552
41	Mar 20, 2026 10:09	4,762	742,528,447	682,281,000	31,966,000	17,076,224
42	Mar 20, 2026 09:28	4,762	749,246,368	680,374,000	33,968,000	17,051,648
43	Mar 20, 2026 09:37	4,763	742,651,055	683,549,000	30,934,000	17,174,528
44	Mar 16, 2026 22:05	4,764	738,459,535	687,723,000	26,949,000	17,063,936
45	Mar 20, 2026 10:22	4,765	740,493,346	684,766,000	29,946,000	16,957,440
46	Mar 20, 2026 09:37	4,766	744,115,086	681,997,000	32,951,000	17,043,456
47	Mar 20, 2026 08:54	4,767	745,317,148	687,100,000	27,963,000	17,010,688
48	Mar 20, 2026 10:09	4,768	741,742,021	684,241,000	30,965,000	16,986,112
49	Mar 20, 2026 08:28	4,770	747,597,731	686,579,000	28,940,000	16,986,112
50	Mar 20, 2026 09:04	4,770	741,426,965	687,579,000	27,942,000	17,047,552
51	Mar 20, 2026 10:22	4,771	746,778,360	680,714,000	34,934,000	17,096,704
52	Mar 20, 2026 09:37	4,772	738,119,300	684,883,000	30,949,000	17,055,744
53	Mar 20, 2026 09:09	4,773	743,577,628	685,951,000	29,954,000	16,986,112
54	Mar 20, 2026 08:38	4,773	743,197,920	685,986,000	29,955,000	17,039,360
55	Mar 20, 2026 07:59	4,773	749,378,007	687,051,000	28,960,000	17,051,648
56	Mar 20, 2026 08:38	4,773	743,713,167	686,956,000	28,956,000	17,133,568
57	Mar 20, 2026 09:18	4,773	745,180,119	688,005,000	27,959,000	17,154,048
58	Mar 16, 2026 22:05	4,774	747,557,309	687,115,000	28,962,000	17,199,104
59	Mar 16, 2026 22:05	4,774	749,835,475	688,197,000	27,967,000	16,957,440
60	Mar 20, 2026 09:04	4,774	745,942,258	682,173,000	33,958,000	17,039,360
61	Mar 16, 2026 22:05	4,775	744,973,521	689,312,000	26,973,000	17,047,552
62	Mar 20, 2026 03:07	4,777	748,975,560	686,542,000	29,936,000	17,047,552
63	Mar 20, 2026 07:59	4,778	744,969,542	689,759,000	26,951,000	17,137,664
64	Mar 20, 2026 08:06	4,778	744,006,952	681,829,000	34,940,000	17,149,952
65	Mar 20, 2026 09:04	4,779	749,131,834	688,953,000	27,957,000	16,957,440
66	Mar 16, 2026 22:05	4,779	743,947,986	683,921,000	32,948,000	17,129,472
67	Mar 20, 2026 03:07	4,780	742,084,573	684,026,000	32,953,000	16,969,728
68	Mar 20, 2026 10:22	4,780	745,466,474	684,987,000	31,952,000	17,092,608
69	Mar 20, 2026 07:59	4,781	748,198,784	688,145,000	28,964,000	16,986,112
70	Mar 20, 2026 03:07	4,781	749,910,778	689,126,000	27,964,000	17,047,552
71	Mar 20, 2026 08:28	4,782	751,948,019	681,293,000	35,962,000	17,182,720
72	Mar 20, 2026 10:09	4,782	746,378,505	687,371,000	29,972,000	16,957,440
73	Mar 16, 2026 22:05	4,784	741,254,405	690,603,000	26,945,000	17,100,800
74	Mar 20, 2026 08:54	4,784	744,395,109	687,730,000	29,944,000	17,055,744
75	Mar 20, 2026 08:06	4,785	745,800,124	684,852,000	32,944,000	17,051,648
76	Mar 20, 2026 08:06	4,786	749,114,302	686,943,000	30,952,000	17,137,664
77	Mar 20, 2026 10:22	4,787	748,450,410	687,035,000	30,956,000	17,072,128
78	Mar 20, 2026 09:18	4,790	746,052,196	690,497,000	27,939,000	17,121,280
79	Mar 20, 2026 09:53	4,791	747,756,178	690,766,000	27,950,000	17,068,032
80	Mar 20, 2026 09:18	4,807	754,537,949	692,063,000	28,960,000	17,047,552
81	Mar 20, 2026 09:53	4,808	753,978,933	689,215,000	31,963,000	16,941,056
82	Mar 20, 2026 09:53	4,813	748,178,362	691,017,000	30,955,000	17,047,552
83	Mar 20, 2026 08:28	4,817	750,088,886	697,596,000	24,949,000	17,063,936
84	Mar 20, 2026 09:11	4,820	750,552,850	694,042,000	28,960,000	17,047,552
85	Mar 16, 2026 22:05	4,822	753,788,150	693,438,000	29,932,000	17,010,688
86	Mar 16, 2026 22:15	4,884	757,563,342	696,689,000	35,932,000	17,051,648
87	Mar 16, 2026 22:15	4,919	769,182,026	707,990,000	29,915,000	16,961,536

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1