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
Dec 19, 2023 20:23	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 19, 2023 18:41	Andrey Likhachev	CPPclang++10.0.0	Success	12,478
Dec 19, 2023 18:36	Andrey Likhachev	CPPclang++10.0.0	Success	12,350
Dec 19, 2023 14:39	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 19, 2023 14:38	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 19, 2023 14:27	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 19, 2023 14:21	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 19, 2023 14:19	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 19, 2023 14:17	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 19, 2023 14:14	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 19, 2023 11:16	Oleg Kovalov	GOgo1.21.5	Success	12,072+1'255.70 RP
Dec 19, 2023 10:56	Oleg Kovalov	GOgo1.21.5	Error
Dec 19, 2023 00:05	Andrey Likhachev	CPPclang++10.0.0	Success	12,412
Dec 18, 2023 17:36	Andrey Likhachev	CPPclang++10.0.0	Success	11,761+14.29 RP
Dec 18, 2023 16:53	Oleg Kovalov	GOgo1.21.5	Success	85,449
Dec 18, 2023 16:23	Oleg Kovalov	GOgo1.21.5	Success	49,873+24.46 RP
Dec 18, 2023 16:21	Oleg Kovalov	GOgo1.21.5	Success	53,113+126.10 RP
Dec 18, 2023 16:19	Oleg Kovalov	GOgo1.21.5	Success	79,853+196.32 RP
Dec 18, 2023 16:03	Oleg Kovalov	GOgo1.21.5	Success	369,445+0.33 RP
Dec 18, 2023 16:01	Oleg Kovalov	GOgo1.21.5	Error
Dec 18, 2023 16:00	Oleg Kovalov	GOgo1.21.5	Error
Dec 18, 2023 15:57	Oleg Kovalov	GOgo1.21.5	Error
Dec 18, 2023 15:56	Oleg Kovalov	GOgo1.21.5	Error
Dec 18, 2023 15:27	Oleg Kovalov	GOgo1.21.5	Error
Dec 18, 2023 15:24	Oleg Kovalov	GOgo1.21.5	Error
Dec 18, 2023 14:53	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 18, 2023 14:29	Oleg Kovalov	GOgo1.21.5	Success	376,979
Dec 18, 2023 14:23	Oleg Kovalov	GOgo1.21.5	Success	377,502
Dec 18, 2023 14:18	Oleg Kovalov	GOgo1.21.5	Success	373,737
Dec 18, 2023 14:12	Oleg Kovalov	GOgo1.21.5	Error
Dec 18, 2023 14:08	Oleg Kovalov	CPPg++9.3.0	Success	369,686+27.05 RP
Dec 18, 2023 14:07	Oleg Kovalov	GOgo1.21.5	Error
Dec 18, 2023 08:39	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 18, 2023 08:35	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 17, 2023 23:17	Andrey Likhachev	CPPclang++10.0.0	Success	11,981
Dec 17, 2023 23:14	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 17, 2023 22:58	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 17, 2023 22:57	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 17, 2023 22:57	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 17, 2023 22:49	Andrey Likhachev	CPPclang++10.0.0	Error
Dec 17, 2023 01:06	Andrey Likhachev	CPPclang++10.0.0	Success	12,662
Dec 17, 2023 01:00	Andrey Likhachev	CPPclang++10.0.0	Success	11,962+43.21 RP
Dec 17, 2023 00:58	Andrey Likhachev	CPPclang++10.0.0	Success	12,640
Dec 17, 2023 00:55	Andrey Likhachev	CPPclang++10.0.0	Success	12,614+3.82 RP
Dec 17, 2023 00:47	Andrey Likhachev	CPPclang++10.0.0	Success	12,675+2.91 RP
Dec 17, 2023 00:45	Andrey Likhachev	CPPg++9.3.0	Success	12,722+213.89 RP
Dec 17, 2023 00:42	Andrey Likhachev	CPPg++9.3.0	Success	17,478+160.86 RP
Dec 17, 2023 00:42	Andrey Likhachev	CPPg++9.3.0	Error
Dec 17, 2023 00:41	Andrey Likhachev	CPPg++9.3.0	Error
Dec 17, 2023 00:20	Andrey Likhachev	CPPg++9.3.0	Error
Dec 17, 2023 00:18	Andrey Likhachev	CPPg++9.3.0	Error
Dec 17, 2023 00:16	Andrey Likhachev	CPPg++9.3.0	Error
Dec 17, 2023 00:07	Andrey Likhachev	CPPg++9.3.0	Error
Dec 17, 2023 00:06	Andrey Likhachev	CPPg++9.3.0	Error
Dec 17, 2023 00:05	Andrey Likhachev	CPPg++9.3.0	Success	24,314+2.61 RP
Dec 17, 2023 00:01	Andrey Likhachev	CPPg++9.3.0	Error
Dec 16, 2023 23:58	Andrey Likhachev	CPPg++9.3.0	Success	24,469+75.31 RP
Dec 16, 2023 23:57	Andrey Likhachev	CPPg++9.3.0	Error
Dec 16, 2023 23:56	Andrey Likhachev	CPPg++9.3.0	Error
Dec 16, 2023 23:50	Andrey Likhachev	CPPg++9.3.0	Success	35,835
Dec 16, 2023 23:49	Andrey Likhachev	CPPg++9.3.0	Error
Dec 16, 2023 23:31	Andrey Likhachev	CPPg++9.3.0	Success	29,997+333.37 RP
Dec 16, 2023 06:29	Kenneth Maples	CPPg++9.3.0	Success	4,748+39.18 RP
Dec 16, 2023 06:24	Kenneth Maples	CPPg++9.3.0	Success	4,843
Dec 16, 2023 06:24	Kenneth Maples	CPPclang++10.0.0	Success	5,077
Dec 16, 2023 06:23	Kenneth Maples	CPPg++9.3.0	Success	4,838+82.06 RP
Dec 16, 2023 06:18	Kenneth Maples	CPPg++9.3.0	Error
Dec 16, 2023 06:16	Kenneth Maples	CPPg++9.3.0	Success	5,337
Dec 16, 2023 06:15	Kenneth Maples	CPPg++9.3.0	Error
Dec 16, 2023 06:09	Kenneth Maples	CPPg++9.3.0	Success	5,038+236.97 RP
Dec 16, 2023 06:05	Kenneth Maples	CPPg++9.3.0	Error
Dec 16, 2023 05:56	Kenneth Maples	CPPg++9.3.0	Success	5,721+2.44 RP
Dec 16, 2023 05:45	Kenneth Maples	CPPg++9.3.0	Success	5,729+24.63 RP
Dec 16, 2023 05:45	Kenneth Maples	CPPg++9.3.0	Success	5,811+55.32 RP
Dec 16, 2023 05:44	Kenneth Maples	CPPg++9.3.0	Success	8,738
Dec 16, 2023 05:41	Kenneth Maples	CPPg++9.3.0	Success	8,609
Dec 16, 2023 05:40	Kenneth Maples	CPPg++9.3.0	Success	9,324
Dec 16, 2023 05:40	Kenneth Maples	CPPg++9.3.0	Error
Dec 16, 2023 05:37	Kenneth Maples	CPPg++9.3.0	Success	6,004+820.32 RP
Dec 16, 2023 05:29	Kenneth Maples	CPPg++9.3.0	Success	11,831+845.24 RP
Nov 21, 2023 11:13	Franek Korta	CPPg++9.3.0	Success	12,344+651.14 RP
Nov 21, 2023 11:12	Franek Korta	CPPg++9.3.0	Error
Nov 21, 2023 11:11	Franek Korta	CPPg++9.3.0	Success	62,904+0.87 RP
Nov 21, 2023 11:08	Franek Korta	CPPg++9.3.0	Success	63,555
Nov 21, 2023 11:06	Franek Korta	CPPg++9.3.0	Success	63,249+158.11 RP
Nov 21, 2023 10:29	mmalczak	CPPg++9.3.0	Success	11,353
Nov 21, 2023 10:28	mmalczak	CPPg++9.3.0	Success	11,355
Nov 21, 2023 10:27	mmalczak	CPPg++9.3.0	Success	11,338
Nov 21, 2023 10:26	mmalczak	CPPg++9.3.0	Success	11,381
Nov 21, 2023 10:24	mmalczak	CPPg++9.3.0	Success	11,414
Nov 21, 2023 10:22	mmalczak	CPPg++9.3.0	Success	11,362
Nov 21, 2023 10:21	mmalczak	CPPg++9.3.0	Success	11,343
Nov 21, 2023 10:20	mmalczak	CPPg++9.3.0	Success	11,330+14.63 RP
Nov 21, 2023 10:17	mmalczak	CPPg++9.3.0	Error
Nov 21, 2023 10:17	mmalczak	CPPg++9.3.0	Error
Nov 21, 2023 10:16	mmalczak	CPPg++9.3.0	Error
Nov 21, 2023 10:16	mmalczak	CPPg++9.3.0	Error
Nov 21, 2023 08:11	mmalczak	CPPg++9.3.0	Success	11,541
Nov 21, 2023 08:10	mmalczak	CPPg++9.3.0	Success	11,537
Nov 21, 2023 08:08	mmalczak	CPPg++9.3.0	Success	11,737

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