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 listJan 17, 2025 22:33

Ian MckibbenScore: 5,037Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 17, 2025 22:33	4,851	750,469,739	703,608,000	23,986,000	17,133,568
2	Jan 17, 2025 22:33	4,856	754,628,033	703,448,000	24,980,000	16,945,152
3	Jan 17, 2025 22:33	4,856	755,413,478	705,433,000	22,981,000	16,953,344
4	Jan 17, 2025 22:33	4,859	753,696,788	704,784,000	23,992,000	16,969,728
5	Jan 17, 2025 22:33	4,862	756,562,445	705,236,000	24,008,000	16,953,344
6	Jan 17, 2025 22:33	4,862	759,807,335	706,267,000	23,008,000	17,199,104
7	Jan 17, 2025 22:33	4,862	764,833,014	705,379,000	23,978,000	17,141,760
8	Jan 17, 2025 22:33	4,869	761,729,201	705,319,000	25,011,000	16,953,344
9	Jan 17, 2025 22:33	4,891	755,458,597	711,624,000	21,988,000	16,953,344
10	Jan 17, 2025 22:31	4,902	761,540,998	712,321,000	22,978,000	16,969,728
11	Jan 17, 2025 22:31	4,959	774,854,708	718,919,000	24,997,000	16,965,632
12	Jan 17, 2025 22:31	4,960	768,929,107	721,051,000	23,001,000	16,953,344
13	Jan 17, 2025 22:31	5,013	774,023,599	728,982,000	22,999,000	17,186,816
14	Jan 17, 2025 22:31	5,037	780,832,924	730,607,000	24,986,000	17,047,552
15	Jan 17, 2025 22:31	5,049	783,929,888	736,335,000	20,981,000	16,961,536
16	Jan 17, 2025 22:31	5,087	785,583,398	739,976,000	22,999,000	16,953,344
17	Jan 17, 2025 22:31	5,102	793,383,960	742,234,000	23,007,000	16,953,344
18	Jan 17, 2025 22:31	5,111	790,376,667	743,672,000	22,989,000	17,084,416
19	Jan 17, 2025 22:33	5,871	903,345,951	858,620,000	21,990,000	16,986,112
20	Jan 17, 2025 22:33	5,900	916,408,210	862,036,000	23,000,000	17,088,512
21	Jan 17, 2025 22:33	5,925	913,645,497	863,714,000	24,991,000	16,953,344
22	Jan 17, 2025 22:34	6,778	1,041,049,481	992,700,000	23,992,000	17,014,784
23	Jan 17, 2025 22:34	6,917	1,059,627,501	1,014,496,000	22,988,000	16,973,824
24	Jan 17, 2025 22:34	6,944	1,062,091,309	1,017,682,000	23,992,000	16,961,536
25	Jan 17, 2025 22:33	9,128	1,395,624,501	1,346,161,000	22,985,000	16,965,632
26	Jan 17, 2025 22:33	9,221	1,415,798,247	1,359,108,000	23,984,000	17,031,168
27	Jan 17, 2025 22:33	9,298	1,421,863,398	1,371,729,000	22,995,000	16,953,344

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