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.

Date	Author	Language	Status	Score
Apr 1, 2023 20:28	Yuriy Lyfenko	CPPg++9.3.0	Success	3,988
Apr 1, 2023 20:27	Yuriy Lyfenko	CPPg++9.3.0	Success	3,945+137.35 RP
Apr 1, 2023 20:06	Yuriy Lyfenko	CPPg++9.3.0	Success	4,181
Apr 1, 2023 20:05	Yuriy Lyfenko	CPPg++9.3.0	Success	4,171+5.16 RP
Apr 1, 2023 19:59	Yuriy Lyfenko	CPPg++9.3.0	Success	4,180+2.29 RP
Apr 1, 2023 19:58	Yuriy Lyfenko	CPPg++9.3.0	Success	4,218
Apr 1, 2023 19:57	Yuriy Lyfenko	CPPg++9.3.0	Success	4,206
Apr 1, 2023 19:56	Yuriy Lyfenko	CPPg++9.3.0	Success	4,236
Apr 1, 2023 19:54	Yuriy Lyfenko	CPPg++9.3.0	Success	4,214
Apr 1, 2023 19:50	Yuriy Lyfenko	CPPg++9.3.0	Success	4,289
Apr 1, 2023 19:49	Yuriy Lyfenko	CPPg++9.3.0	Success	4,223
Apr 1, 2023 19:48	Yuriy Lyfenko	CPPg++9.3.0	Success	4,187
Apr 1, 2023 19:47	Yuriy Lyfenko	CPPg++9.3.0	Success	12,137
Apr 1, 2023 19:40	Yuriy Lyfenko	CPPg++9.3.0	Success	4,265
Apr 1, 2023 19:38	Yuriy Lyfenko	CPPg++9.3.0	Success	4,225
Apr 1, 2023 19:37	Yuriy Lyfenko	CPPg++9.3.0	Success	4,219
Apr 1, 2023 19:34	Yuriy Lyfenko	CPPg++9.3.0	Success	4,199
Apr 1, 2023 19:33	Yuriy Lyfenko	CPPg++9.3.0	Success	4,184+2.28 RP
Apr 1, 2023 19:32	Yuriy Lyfenko	CPPg++9.3.0	Success	4,198
Apr 1, 2023 19:32	Yuriy Lyfenko	CPPg++9.3.0	Success	4,188
Apr 1, 2023 19:31	Yuriy Lyfenko	CPPg++9.3.0	Success	5,064
Apr 1, 2023 19:30	Yuriy Lyfenko	CPPg++9.3.0	Success	5,062
Apr 1, 2023 19:29	Yuriy Lyfenko	CPPg++9.3.0	Success	5,059
Apr 1, 2023 19:29	Yuriy Lyfenko	CPPg++9.3.0	Success	4,224
Apr 1, 2023 19:26	Yuriy Lyfenko	CPPg++9.3.0	Success	4,188+2.85 RP
Apr 1, 2023 19:25	Yuriy Lyfenko	CPPg++9.3.0	Success	4,239
Apr 1, 2023 19:24	Yuriy Lyfenko	CPPg++9.3.0	Success	4,202
Apr 1, 2023 19:23	Yuriy Lyfenko	CPPg++9.3.0	Success	4,193+5.67 RP
Apr 1, 2023 19:22	Yuriy Lyfenko	CPPg++9.3.0	Success	4,211
Apr 1, 2023 19:19	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 19:17	Yuriy Lyfenko	CPPg++9.3.0	Success	31,727
Apr 1, 2023 19:17	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 19:13	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 19:11	Yuriy Lyfenko	CPPg++9.3.0	Success	4,206
Apr 1, 2023 19:11	Yuriy Lyfenko	CPPg++9.3.0	Success	4,206
Apr 1, 2023 19:08	Yuriy Lyfenko	CPPg++9.3.0	Success	4,204
Apr 1, 2023 19:07	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 19:06	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 18:47	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 18:46	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 15:25	Yuriy Lyfenko	CPPg++9.3.0	Success	24,381
Apr 1, 2023 15:22	Yuriy Lyfenko	CPPg++9.3.0	Success	24,397
Apr 1, 2023 15:18	Yuriy Lyfenko	CPPg++9.3.0	Success	4,203+3.96 RP
Apr 1, 2023 15:17	Yuriy Lyfenko	CPPg++9.3.0	Success	4,210+11.79 RP
Apr 1, 2023 15:15	Yuriy Lyfenko	CPPclang++10.0.0	Success	9,261
Apr 1, 2023 15:11	Yuriy Lyfenko	CPPg++9.3.0	Success	4,259
Apr 1, 2023 15:10	Yuriy Lyfenko	CPPg++9.3.0	Success	4,253
Apr 1, 2023 15:10	Yuriy Lyfenko	CPPg++9.3.0	Success	4,231+0.56 RP
Apr 1, 2023 14:19	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 14:11	Yuriy Lyfenko	CPPg++9.3.0	Success	4,237
Apr 1, 2023 05:31	Yuriy Lyfenko	CPPg++9.3.0	Success	4,232+24.86 RP
Apr 1, 2023 05:28	Yuriy Lyfenko	CPPclang++10.0.0	Success	15,608
Apr 1, 2023 05:24	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 05:23	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 05:01	Yuriy Lyfenko	CPPg++9.3.0	Success	4,432
Apr 1, 2023 05:01	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 04:58	Yuriy Lyfenko	CPPg++9.3.0	Success	4,297
Apr 1, 2023 04:35	Yuriy Lyfenko	CPPg++9.3.0	Success	30,549
Apr 1, 2023 04:34	Yuriy Lyfenko	CPPg++9.3.0	Success	33,995
Apr 1, 2023 04:32	Yuriy Lyfenko	CPPg++9.3.0	Success	4,301
Apr 1, 2023 04:30	Yuriy Lyfenko	CPPg++9.3.0	Success	4,482
Apr 1, 2023 04:27	Yuriy Lyfenko	CPPg++9.3.0	Success	4,287
Apr 1, 2023 04:17	Yuriy Lyfenko	CPPg++9.3.0	Success	35,899
Apr 1, 2023 04:14	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 04:12	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 04:10	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 04:08	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 03:56	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 03:51	Yuriy Lyfenko	CPPg++9.3.0	Success	4,277+18.44 RP
Apr 1, 2023 03:48	Yuriy Lyfenko	CPPg++9.3.0	Success	4,759
Apr 1, 2023 03:47	Yuriy Lyfenko	CPPg++9.3.0	Success	8,123
Mar 30, 2023 21:21	Bernard Teo	CPPg++9.3.0	Error
Mar 30, 2023 21:11	Bernard Teo	CPPg++9.3.0	Error
Mar 30, 2023 21:08	Bernard Teo	CPPg++9.3.0	Error
Mar 30, 2023 21:03	Bernard Teo	CPPg++9.3.0	Error
Mar 30, 2023 21:01	Bernard Teo	CPPg++9.3.0	Error
Mar 30, 2023 21:01	Bernard Teo	CPPg++9.3.0	Error
Mar 30, 2023 20:59	Bernard Teo	CPPg++9.3.0	Error
Mar 27, 2023 09:11	Mikhail Shirokov	CPPg++9.3.0	Error
Mar 27, 2023 09:02	Mikhail Shirokov	CPPg++9.3.0	Success	17,364+137.69 RP
Mar 27, 2023 08:57	Mikhail Shirokov	CPPg++9.3.0	Error
Mar 27, 2023 08:56	Mikhail Shirokov	CPPg++9.3.0	Success	22,820+2.92 RP
Mar 27, 2023 08:54	Mikhail Shirokov	CPPg++9.3.0	Success	22,973+33.45 RP
Mar 27, 2023 08:36	Mikhail Shirokov	CPPg++9.3.0	Success	25,268
Mar 27, 2023 08:36	Mikhail Shirokov	CPPg++9.3.0	Success	26,967
Mar 27, 2023 08:32	Mikhail Shirokov	CPPg++9.3.0	Success	31,990
Mar 27, 2023 08:24	Mikhail Shirokov	CPPg++9.3.0	Success	24,885+244.56 RP
Mar 27, 2023 08:09	Mikhail Shirokov	CPPg++9.3.0	Error
Mar 27, 2023 08:08	Mikhail Shirokov	CPPg++9.3.0	Error
Mar 27, 2023 08:07	Mikhail Shirokov	CPPg++9.3.0	Error
Mar 27, 2023 07:55	Mikhail Shirokov	CPPg++9.3.0	Success	63,577+130.20 RP
Mar 27, 2023 07:45	Mikhail Shirokov	CPPg++9.3.0	Success	369,175+27.09 RP
Mar 26, 2023 11:55	Alexander Monakov	CPPg++9.3.0	Success	3,937
Mar 26, 2023 11:54	Alexander Monakov	CPPg++9.3.0	Success	3,940
Mar 26, 2023 11:52	Alexander Monakov	CPPg++9.3.0	Success	3,937+43.28 RP
Mar 26, 2023 11:51	Alexander Monakov	CPPg++9.3.0	Success	4,003
Mar 26, 2023 11:43	Alexander Monakov	CPPg++9.3.0	Error
Mar 26, 2023 11:37	Alexander Monakov	CPPg++9.3.0	Error
Mar 26, 2023 11:32	Alexander Monakov	CPPg++9.3.0	Error
Mar 26, 2023 11:28	Alexander Monakov	CPPg++9.3.0	Success	3,997+0.63 RP

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