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 listDec 16, 2023 06:29

Kenneth MaplesScore: 4,748Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Dec 16, 2023 06:29	4,636	751,697,196	695,425,792	0	16,949,248
2	Dec 16, 2023 06:28	4,637	751,957,325	695,492,114	0	16,949,248
3	Dec 16, 2023 06:29	4,639	753,722,268	695,865,318	0	16,949,248
4	Dec 16, 2023 06:28	4,640	754,657,095	695,991,834	0	16,945,152
5	Dec 16, 2023 06:29	4,647	755,921,217	697,106,154	0	16,949,248
6	Dec 16, 2023 06:28	4,649	761,186,102	697,364,523	0	16,945,152
7	Dec 16, 2023 06:29	4,651	779,622,160	697,696,649	0	16,945,152
8	Dec 16, 2023 06:29	4,652	760,194,664	697,801,606	0	16,949,248
9	Dec 16, 2023 06:29	4,654	757,353,901	698,099,261	0	16,957,440
10	Dec 16, 2023 06:29	4,733	731,323,765	681,900,000	27,995,000	17,092,608
11	Dec 16, 2023 06:29	4,735	743,021,027	685,211,000	25,007,000	17,186,816
12	Dec 16, 2023 06:28	4,740	736,412,753	681,022,000	30,000,000	16,982,016
13	Dec 16, 2023 06:29	4,744	734,318,463	679,550,000	31,978,000	16,969,728
14	Dec 16, 2023 06:29	4,744	734,668,207	685,636,000	25,986,000	16,977,920
15	Dec 16, 2023 06:29	4,745	732,633,093	680,784,000	30,990,000	16,990,208
16	Dec 16, 2023 06:28	4,746	737,299,938	686,948,000	24,998,000	16,965,632
17	Dec 16, 2023 06:29	4,746	737,758,261	690,839,000	20,995,000	17,092,608
18	Dec 16, 2023 06:28	4,748	742,250,866	687,168,000	25,006,000	17,063,936
19	Dec 16, 2023 06:28	4,748	732,446,016	686,139,000	26,005,000	16,969,728
20	Dec 16, 2023 06:29	4,748	742,330,458	681,263,000	31,011,000	16,965,632
21	Dec 16, 2023 06:28	4,749	738,561,677	680,362,000	31,970,000	16,973,824
22	Dec 16, 2023 06:29	4,751	741,164,051	683,696,000	28,987,000	16,969,728
23	Dec 16, 2023 06:28	4,751	736,569,865	688,696,000	23,989,000	17,100,800
24	Dec 16, 2023 06:29	4,751	738,985,817	686,692,000	25,988,000	17,080,320
25	Dec 16, 2023 06:29	4,752	739,831,781	682,743,000	29,988,000	16,941,056
26	Dec 16, 2023 06:29	4,752	739,695,646	685,796,000	26,992,000	17,178,624
27	Dec 16, 2023 06:29	4,753	737,057,723	688,953,000	23,998,000	17,199,104
28	Dec 16, 2023 06:28	4,753	741,528,230	689,939,000	22,997,000	17,113,088
29	Dec 16, 2023 06:29	4,755	739,840,240	688,185,000	25,006,000	17,072,128
30	Dec 16, 2023 06:29	4,756	739,891,041	682,448,000	30,974,000	17,051,648
31	Dec 16, 2023 06:29	4,757	733,750,421	680,524,000	32,976,000	16,969,728
32	Dec 16, 2023 06:29	4,761	743,066,195	689,176,000	25,006,000	16,969,728
33	Dec 16, 2023 06:29	4,768	742,760,717	687,161,000	28,006,000	17,203,200
34	Dec 16, 2023 06:28	4,768	745,805,918	685,240,000	30,010,000	17,039,360
35	Dec 16, 2023 06:28	4,769	748,233,519	689,286,000	26,010,000	16,973,824
36	Dec 16, 2023 06:29	4,770	746,172,212	683,524,000	31,977,000	16,953,344

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