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 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
Apr 9, 2023 18:22	Bernard Teo	CPPg++9.3.0	Success	11,791
Apr 9, 2023 18:12	Bernard Teo	CPPg++9.3.0	Error
Apr 9, 2023 18:10	Bernard Teo	CPPg++9.3.0	Error
Apr 9, 2023 18:07	Bernard Teo	CPPg++9.3.0	Error
Apr 9, 2023 18:07	Bernard Teo	CPPg++9.3.0	Success	11,938
Apr 9, 2023 18:02	Bernard Teo	CPPg++9.3.0	Success	11,845
Apr 9, 2023 17:28	Bernard Teo	CPPg++9.3.0	Error
Apr 1, 2023 22:25	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 21:23	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 1, 2023 21:21	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 1, 2023 21:21	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943
Apr 1, 2023 21:20	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943
Apr 1, 2023 21:19	Yuriy Lyfenko	CPPg++9.3.0	Success	30,809
Apr 1, 2023 21:18	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943
Apr 1, 2023 21:18	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 1, 2023 21:17	Yuriy Lyfenko	CPPclang++10.0.0	Success	8,056
Apr 1, 2023 21:15	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 1, 2023 21:14	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943
Apr 1, 2023 21:13	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943
Apr 1, 2023 21:12	Yuriy Lyfenko	CPPg++9.3.0	Success	3,945
Apr 1, 2023 21:11	Yuriy Lyfenko	CPPg++9.3.0	Success	3,950
Apr 1, 2023 21:10	Yuriy Lyfenko	CPPg++9.3.0	Success	3,946
Apr 1, 2023 21:09	Yuriy Lyfenko	CPPg++9.3.0	Success	3,955
Apr 1, 2023 21:08	Yuriy Lyfenko	CPPg++9.3.0	Success	3,946
Apr 1, 2023 21:07	Yuriy Lyfenko	CPPg++9.3.0	Success	3,943+0.64 RP
Apr 1, 2023 21:05	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 1, 2023 21:04	Yuriy Lyfenko	CPPg++9.3.0	Success	3,945
Apr 1, 2023 21:03	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 1, 2023 21:03	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944
Apr 1, 2023 21:01	Yuriy Lyfenko	CPPg++9.3.0	Success	3,945
Apr 1, 2023 21:00	Yuriy Lyfenko	CPPclang++10.0.0	Success	8,960
Apr 1, 2023 20:57	Yuriy Lyfenko	CPPg++9.3.0	Error
Apr 1, 2023 20:46	Yuriy Lyfenko	CPPg++9.3.0	Success	4,211
Apr 1, 2023 20:46	Yuriy Lyfenko	CPPg++9.3.0	Success	3,944+0.64 RP
Apr 1, 2023 20:42	Yuriy Lyfenko	CPPg++9.3.0	Success	4,200
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

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