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 14, 2026 18:20

Dominique GarmierScore: 7,062Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 14, 2026 18:58	6,790	1,046,617,240	982,603,000	35,912,000	16,969,728
2	Mar 14, 2026 18:00	6,804	1,053,987,072	983,650,000	36,911,000	17,002,496
3	Mar 14, 2026 19:09	6,805	1,052,130,107	978,812,000	41,906,000	17,022,976
4	Mar 15, 2026 09:57	6,810	1,056,919,812	989,582,000	31,954,000	17,047,552
5	Mar 14, 2026 19:04	6,825	1,058,466,353	990,853,000	32,928,000	17,039,360
6	Mar 14, 2026 19:04	6,828	1,052,999,391	988,194,000	35,934,000	17,137,664
7	Mar 14, 2026 19:09	6,832	1,057,841,885	989,859,000	34,924,000	17,059,840
8	Mar 14, 2026 19:09	6,852	1,055,732,842	994,844,000	32,928,000	17,047,552
9	Mar 14, 2026 18:20	6,858	1,060,220,344	994,706,000	33,921,000	16,986,112
10	Mar 14, 2026 17:53	6,882	1,062,116,536	1,002,300,000	29,949,000	17,088,512
11	Mar 14, 2026 18:00	6,917	1,066,915,603	993,655,000	43,896,000	16,973,824
12	Mar 14, 2026 17:53	6,925	1,062,738,343	1,005,829,000	32,928,000	17,080,320
13	Mar 14, 2026 19:09	6,930	1,071,902,822	996,553,000	42,894,000	17,047,552
14	Mar 14, 2026 19:04	6,934	1,071,161,050	1,001,175,000	38,929,000	17,035,264
15	Mar 14, 2026 18:08	6,937	1,070,861,008	1,003,605,000	36,911,000	17,084,416
16	Mar 14, 2026 19:04	6,938	1,070,884,122	999,731,000	40,907,000	17,190,912
17	Mar 14, 2026 19:04	6,942	1,068,735,019	1,004,312,000	36,937,000	16,945,152
18	Mar 14, 2026 19:09	6,947	1,075,263,999	1,007,089,000	34,933,000	16,990,208
19	Mar 14, 2026 19:09	6,965	1,074,784,510	1,012,825,000	31,931,000	17,080,320
20	Mar 14, 2026 17:53	6,971	1,073,574,516	1,009,765,000	35,920,000	17,125,376
21	Mar 14, 2026 18:08	6,975	1,074,551,852	1,016,297,000	29,949,000	17,010,688
22	Mar 14, 2026 18:20	6,980	1,079,134,433	1,013,132,000	33,937,000	16,941,056
23	Mar 14, 2026 19:09	6,980	1,078,999,822	1,011,118,000	35,933,000	16,949,248
24	Mar 14, 2026 19:04	6,987	1,080,328,157	1,012,138,000	35,933,000	17,137,664
25	Mar 14, 2026 18:08	6,991	1,079,662,204	1,010,797,000	37,917,000	17,031,168
26	Mar 14, 2026 18:00	7,007	1,078,611,251	1,017,050,000	33,934,000	17,051,648
27	Mar 14, 2026 19:04	7,022	1,083,041,533	1,019,459,000	33,915,000	17,162,240
28	Mar 15, 2026 09:57	7,026	1,084,032,719	1,020,034,000	33,934,000	17,010,688
29	Mar 14, 2026 18:00	7,034	1,082,563,597	1,021,096,000	33,936,000	17,043,456
30	Mar 14, 2026 18:08	7,043	1,092,065,102	1,020,591,000	35,915,000	17,108,992
31	Mar 14, 2026 17:53	7,062	1,092,924,783	1,023,461,000	35,910,000	17,047,552
32	Mar 15, 2026 09:57	7,067	1,092,126,193	1,030,120,000	29,945,000	17,043,456
33	Mar 14, 2026 17:53	7,140	1,101,336,284	1,033,108,000	37,930,000	17,035,264
34	Mar 14, 2026 18:08	7,160	1,102,795,865	1,040,103,000	33,938,000	17,022,976
35	Mar 14, 2026 18:08	7,195	1,111,465,349	1,042,308,000	36,940,000	17,072,128
36	Mar 14, 2026 18:20	7,196	1,109,585,751	1,041,513,000	37,909,000	17,055,744
37	Mar 14, 2026 18:58	7,213	1,112,449,616	1,043,039,000	38,926,000	17,154,048
38	Mar 14, 2026 18:00	7,215	1,109,477,525	1,040,291,000	41,931,000	17,035,264
39	Mar 14, 2026 18:00	7,216	1,109,471,963	1,036,550,000	45,891,000	17,043,456
40	Mar 14, 2026 19:04	7,220	1,111,462,393	1,047,019,000	35,932,000	16,953,344
41	Mar 14, 2026 17:53	7,222	1,109,252,621	1,049,421,000	33,916,000	17,154,048
42	Mar 14, 2026 18:08	7,223	1,114,308,743	1,050,583,000	32,924,000	17,059,840
43	Mar 14, 2026 18:00	7,225	1,117,018,276	1,049,763,000	33,927,000	17,051,648
44	Mar 14, 2026 17:53	7,229	1,111,693,571	1,046,483,000	37,908,000	17,006,592
45	Mar 14, 2026 18:08	7,236	1,114,677,666	1,050,514,000	34,917,000	17,031,168
46	Mar 14, 2026 19:09	7,242	1,114,592,256	1,057,429,000	28,929,000	17,047,552
47	Mar 14, 2026 18:20	7,243	1,121,876,939	1,052,542,000	33,920,000	17,051,648
48	Mar 14, 2026 18:00	7,244	1,111,850,660	1,049,626,000	36,916,000	17,104,896
49	Mar 14, 2026 18:58	7,247	1,111,537,806	1,045,155,000	41,925,000	17,158,144
50	Mar 14, 2026 19:04	7,251	1,115,885,369	1,048,790,000	38,918,000	17,043,456
51	Mar 14, 2026 18:20	7,252	1,122,498,659	1,048,875,000	38,921,000	17,055,744
52	Mar 14, 2026 17:53	7,253	1,117,153,446	1,047,029,000	40,922,000	16,945,152
53	Mar 14, 2026 18:20	7,254	1,120,063,053	1,053,195,000	34,940,000	17,190,912
54	Mar 14, 2026 18:00	7,261	1,120,600,100	1,048,154,000	40,927,000	17,039,360
55	Mar 14, 2026 18:20	7,272	1,121,494,115	1,058,834,000	31,934,000	17,088,512
56	Mar 14, 2026 19:09	7,275	1,125,472,424	1,053,319,000	37,903,000	17,051,648
57	Mar 14, 2026 18:20	7,290	1,121,253,303	1,063,496,000	29,929,000	17,047,552
58	Mar 14, 2026 18:08	7,330	1,133,385,228	1,058,529,000	40,904,000	17,043,456
59	Mar 14, 2026 18:20	7,456	1,151,743,380	1,084,511,000	33,922,000	17,055,744
60	Mar 14, 2026 17:53	7,637	1,180,175,782	1,099,638,000	45,901,000	17,039,360

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