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
May 1, 2023 17:00	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 23, 2023 03:49	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 23, 2023 02:59	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 23, 2023 02:59	Yuriy Lyfenko	CPPclang++10.0.0	Error
Apr 23, 2023 02:58	Yuriy Lyfenko	CPPclang++10.0.0	Error
Apr 23, 2023 02:57	Yuriy Lyfenko	CPPclang++10.0.0	Error
Apr 23, 2023 02:56	Yuriy Lyfenko	CPPclang++10.0.0	Error
Apr 23, 2023 02:56	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 22, 2023 22:25	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943
Apr 22, 2023 22:24	Yuriy Lyfenko	CPPg++9.3.0	Success	3,954
Apr 22, 2023 22:23	Yuriy Lyfenko	CPPg++9.3.0	Success	3,955
Apr 22, 2023 19:28	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 22, 2023 19:28	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 22, 2023 19:27	Yuriy Lyfenko	CPPg++9.3.0	Success	3,945
Apr 22, 2023 19:17	Yuriy Lyfenko	CPPg++9.3.0	Success	5,121
Apr 22, 2023 18:35	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943
Apr 22, 2023 18:32	Yuriy Lyfenko	CPPg++9.3.0	Success	4,005
Apr 22, 2023 18:27	Yuriy Lyfenko	CPPg++9.3.0	Success	4,026
Apr 22, 2023 18:12	Yuriy Lyfenko	CPPg++9.3.0	Success	4,006
Apr 22, 2023 17:44	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 22, 2023 17:33	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 22, 2023 16:51	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 22, 2023 15:18	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 22, 2023 15:15	Yuriy Lyfenko	CPPg++9.3.0	Success	3,960
Apr 22, 2023 15:11	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943
Apr 22, 2023 15:11	Yuriy Lyfenko	CPPclang++10.0.0	Success	15,318
Apr 22, 2023 14:43	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 20, 2023 15:36	Bernard Teo	CPPg++9.3.0	Success	3,144
Apr 20, 2023 05:04	Yuriy Lyfenko	CPPg++9.3.0	Success	4,180
Apr 20, 2023 05:03	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 20, 2023 04:45	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 20, 2023 04:34	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 20, 2023 04:30	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 20, 2023 04:29	Yuriy Lyfenko	CPPg++9.3.0	Success	5,089
Apr 20, 2023 04:21	Yuriy Lyfenko	CPPg++9.3.0	Success	5,048
Apr 20, 2023 04:20	Yuriy Lyfenko	CPPg++9.3.0	Success	5,108
Apr 20, 2023 04:19	Yuriy Lyfenko	CPPg++9.3.0	Success	7,117
Apr 20, 2023 04:18	Yuriy Lyfenko	CPPg++9.3.0	Success	5,259
Apr 20, 2023 04:17	Yuriy Lyfenko	CPPg++9.3.0	Success	5,036
Apr 20, 2023 04:15	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 20, 2023 04:13	Yuriy Lyfenko	CPPg++9.3.0	Success	5,391
Apr 20, 2023 04:12	Yuriy Lyfenko	CPPg++9.3.0	Success	6,960
Apr 20, 2023 04:07	Yuriy Lyfenko	CPPg++9.3.0	Success	5,532
Apr 20, 2023 04:07	Yuriy Lyfenko	CPPg++9.3.0	Success	7,044
Apr 20, 2023 03:57	Yuriy Lyfenko	CPPg++9.3.0	Success	5,875
Apr 20, 2023 03:44	Yuriy Lyfenko	CPPg++9.3.0	Success	11,662
Apr 19, 2023 18:01	Yuriy Lyfenko	CPPg++9.3.0	Success	27,103
Apr 19, 2023 14:20	Yuriy Lyfenko	CPPg++9.3.0	Success	29,437
Apr 19, 2023 12:42	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 19, 2023 12:25	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 19, 2023 12:22	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 19, 2023 03:29	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 19, 2023 03:28	Yuriy Lyfenko	CPPg++9.3.0	Success	3,995
Apr 19, 2023 03:20	Yuriy Lyfenko	CPPg++9.3.0	Success	3,997
Apr 19, 2023 03:18	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 19, 2023 03:16	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 19, 2023 03:15	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943
Apr 19, 2023 03:14	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 19, 2023 03:14	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 19, 2023 03:13	Yuriy Lyfenko	CPPg++9.3.0	Success	3,942+0.64 RP
Apr 19, 2023 02:56	Yuriy Lyfenko	CPPg++9.3.0	Success	3,962
Apr 19, 2023 02:56	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 19, 2023 02:53	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 19, 2023 02:50	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 18, 2023 15:44	Bernard Teo	CPPg++9.3.0	Success	3,144
Apr 18, 2023 15:42	Bernard Teo	CPPg++9.3.0	Success	3,148
Apr 18, 2023 15:37	Bernard Teo	CPPg++9.3.0	Success	3,155
Apr 18, 2023 15:36	Bernard Teo	CPPg++9.3.0	Success	3,129
Apr 18, 2023 15:35	Bernard Teo	CPPg++9.3.0	Success	3,127
Apr 18, 2023 15:33	Bernard Teo	CPPg++9.3.0	Success	3,126
Apr 18, 2023 15:31	Bernard Teo	CPPg++9.3.0	Success	3,125+2.04 RP
Apr 18, 2023 15:26	Bernard Teo	CPPg++9.3.0	Success	3,126
Apr 18, 2023 15:18	Bernard Teo	CPPg++9.3.0	Success	3,126+10.22 RP
Apr 17, 2023 16:55	Bernard Teo	CPPg++9.3.0	Success	3,587
Apr 17, 2023 16:54	Bernard Teo	CPPg++9.3.0	Success	3,131+742.80 RP
Apr 17, 2023 16:53	Bernard Teo	CPPg++9.3.0	Success	3,543+221.94 RP
Apr 17, 2023 16:52	Bernard Teo	CPPg++9.3.0	Success	3,688+548.17 RP
Apr 17, 2023 16:51	Bernard Teo	CPPg++9.3.0	Success	4,283+388.15 RP
Apr 17, 2023 16:48	Bernard Teo	CPPg++9.3.0	Success	5,142
Apr 17, 2023 16:48	Bernard Teo	CPPg++9.3.0	Success	5,140
Apr 17, 2023 16:47	Bernard Teo	CPPg++9.3.0	Success	5,137+0.38 RP
Apr 17, 2023 16:45	Bernard Teo	CPPg++9.3.0	Success	5,138+1'092.89 RP
Apr 17, 2023 16:37	Bernard Teo	CPPg++9.3.0	Error
Apr 17, 2023 16:36	Bernard Teo	CPPg++9.3.0	Success	12,364
Apr 17, 2023 16:35	Bernard Teo	CPPg++9.3.0	Error
Apr 16, 2023 15:24	Bernard Teo	CPPg++9.3.0	Error
Apr 16, 2023 07:53	Bernard Teo	CPPg++9.3.0	Success	11,976
Apr 16, 2023 07:51	Bernard Teo	CPPg++9.3.0	Success	12,269
Apr 16, 2023 07:51	Bernard Teo	CPPg++9.3.0	Error
Apr 16, 2023 07:43	Bernard Teo	CPPg++9.3.0	Success	23,590
Apr 14, 2023 02:03	Kyle Wang	CPPg++9.3.0	Success	371,990+26.88 RP
Apr 9, 2023 18:47	Bernard Teo	CPPg++9.3.0	Success	23,624
Apr 9, 2023 18:46	Bernard Teo	CPPg++9.3.0	Success	28,483
Apr 9, 2023 18:45	Bernard Teo	CPPg++9.3.0	Success	11,807
Apr 9, 2023 18:41	Bernard Teo	CPPg++9.3.0	Error
Apr 9, 2023 18:35	Bernard Teo	CPPg++9.3.0	Error
Apr 9, 2023 18:34	Bernard Teo	CPPg++9.3.0	Error
Apr 9, 2023 18:25	Bernard Teo	CPPg++9.3.0	Error
Apr 9, 2023 18:25	Bernard Teo	CPPg++9.3.0	Success	12,589
Apr 9, 2023 18:23	Bernard Teo	CPPg++9.3.0	Success	12,557

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