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
Mar 25, 2023 05:46	Yuriy Lyfenko	CPPg++9.3.0	Success	4,679
Mar 25, 2023 05:45	Yuriy Lyfenko	CPPg++9.3.0	Success	4,765
Mar 25, 2023 00:34	Mikhail Dektyarev	CPPclang++10.0.0	Success	6,873+0.85 RP
Mar 25, 2023 00:34	Mikhail Dektyarev	CPPclang++10.0.0	Success	8,624
Mar 25, 2023 00:32	Mikhail Dektyarev	CPPclang++10.0.0	Success	6,877+96.16 RP
Mar 25, 2023 00:32	Mikhail Dektyarev	CPPclang++10.0.0	Success	7,531
Mar 25, 2023 00:31	Mikhail Dektyarev	CPPclang++10.0.0	Success	11,829
Mar 25, 2023 00:29	Mikhail Dektyarev	CPPclang++10.0.0	Success	7,364+561.91 RP
Mar 25, 2023 00:29	Yurkov Aleksey	CPPg++9.3.0	Success	3,945+99.52 RP
Mar 25, 2023 00:28	Mikhail Dektyarev	CPPclang++10.0.0	Success	27,547
Mar 25, 2023 00:27	Mikhail Dektyarev	CPPclang++10.0.0	Success	26,671
Mar 25, 2023 00:17	Yurkov Aleksey	CPPg++9.3.0	Success	4,024
Mar 25, 2023 00:00	Yurkov Aleksey	CPPg++9.3.0	Success	4,030
Mar 24, 2023 23:52	Yurkov Aleksey	CPPg++9.3.0	Success	4,024+119.34 RP
Mar 24, 2023 23:40	Yurkov Aleksey	CPPg++9.3.0	Success	4,124
Mar 24, 2023 23:40	Yurkov Aleksey	CPPg++9.3.0	Success	4,124
Mar 24, 2023 23:40	Yurkov Aleksey	CPPg++9.3.0	Success	4,123
Mar 24, 2023 23:34	Yurkov Aleksey	CPPg++9.3.0	Success	4,123+19.92 RP
Mar 24, 2023 23:30	Yurkov Aleksey	CPPg++9.3.0	Success	4,150
Mar 24, 2023 23:29	Yurkov Aleksey	CPPg++9.3.0	Success	4,485
Mar 24, 2023 23:20	Mikhail Dektyarev	CPPclang++10.0.0	Success	13,695
Mar 24, 2023 23:16	Mikhail Dektyarev	CPPclang++10.0.0	Success	12,562+0.57 RP
Mar 24, 2023 23:16	Yurkov Aleksey	CPPg++9.3.0	Success	4,140+42.80 RP
Mar 24, 2023 23:15	Mikhail Dektyarev	CPPclang++10.0.0	Success	36,201
Mar 24, 2023 23:10	Mikhail Dektyarev	CPPclang++10.0.0	Success	12,571+2.77 RP
Mar 24, 2023 23:10	Mikhail Dektyarev	CPPg++9.3.0	Success	12,615+471.79 RP
Mar 24, 2023 23:09	Yurkov Aleksey	CPPg++9.3.0	Success	4,177+9.16 RP
Mar 24, 2023 23:08	Yurkov Aleksey	CPPg++9.3.0	Success	4,260
Mar 24, 2023 23:08	Mikhail Dektyarev	CPPg++9.3.0	Success	31,161+1.22 RP
Mar 24, 2023 23:07	Yurkov Aleksey	CPPg++9.3.0	Success	4,187
Mar 24, 2023 23:07	Mikhail Dektyarev	CPPg++9.3.0	Error
Mar 24, 2023 23:05	Mikhail Dektyarev	CPPg++9.3.0	Error
Mar 24, 2023 23:03	Yuriy Lyfenko	CPPg++9.3.0	Success	4,313
Mar 24, 2023 23:02	Yuriy Lyfenko	CPPg++9.3.0	Success	4,311+2.69 RP
Mar 24, 2023 22:57	Yuriy Lyfenko	CPPg++9.3.0	Success	4,316+13.34 RP
Mar 24, 2023 22:56	Yurkov Aleksey	CPPg++9.3.0	Success	4,185+188.89 RP
Mar 24, 2023 22:56	Mikhail Dektyarev	CPPg++9.3.0	Success	31,280+292.78 RP
Mar 24, 2023 22:51	Mikhail Dektyarev	CPPg++9.3.0	Success	371,545+26.91 RP
Mar 24, 2023 22:50	Yuriy Lyfenko	CPPg++9.3.0	Success	4,341+18.95 RP
Mar 24, 2023 22:43	Yurkov Aleksey	CPPg++9.3.0	Success	4,529+215.96 RP
Mar 24, 2023 19:33	Bernard Teo	CPPg++9.3.0	Success	11,718+2.98 RP
Mar 24, 2023 19:30	Bernard Teo	CPPg++9.3.0	Success	11,759+15.34 RP
Mar 24, 2023 19:25	Bernard Teo	CPPg++9.3.0	Success	11,975+0.63 RP
Mar 24, 2023 19:14	Bernard Teo	CPPg++9.3.0	Success	12,657
Mar 24, 2023 19:13	Bernard Teo	CPPg++9.3.0	Error
Mar 24, 2023 19:11	Bernard Teo	CPPg++9.3.0	Error
Mar 24, 2023 19:01	Bernard Teo	CPPg++9.3.0	Success	23,198
Mar 24, 2023 18:49	Bernard Teo	CPPg++9.3.0	Success	12,021
Mar 24, 2023 18:47	Bernard Teo	CPPg++9.3.0	Success	11,984+807.42 RP
Mar 24, 2023 18:47	Bernard Teo	CPPg++9.3.0	Error
Mar 24, 2023 18:46	Bernard Teo	CPPg++9.3.0	Error
Mar 24, 2023 18:44	Bernard Teo	CPPg++9.3.0	Error
Mar 24, 2023 18:43	Bernard Teo	CPPg++9.3.0	Error
Mar 24, 2023 18:42	Bernard Teo	CPPg++9.3.0	Error
Mar 24, 2023 18:39	Bernard Teo	CPPg++9.3.0	Error
Mar 24, 2023 18:03	Alexander Monakov	CPPg++9.3.0	Success	4,198+171.22 RP
Mar 24, 2023 17:35	Yuriy Lyfenko	CPPg++9.3.0	Success	4,516
Mar 24, 2023 17:29	Yuriy Lyfenko	CPPg++9.3.0	Success	4,393
Mar 24, 2023 17:07	Yuriy Lyfenko	CPPg++9.3.0	Success	19,321
Mar 24, 2023 16:33	Yuriy Lyfenko	CPPg++9.3.0	Success	4,537
Mar 24, 2023 16:29	Yuriy Lyfenko	CPPg++9.3.0	Success	4,513
Mar 24, 2023 16:26	Yuriy Lyfenko	CPPg++9.3.0	Success	4,588
Mar 24, 2023 16:25	Yuriy Lyfenko	CPPg++9.3.0	Success	4,556
Mar 24, 2023 16:20	Yuriy Lyfenko	CPPg++9.3.0	Success	4,472
Mar 24, 2023 16:19	Yuriy Lyfenko	CPPg++9.3.0	Success	4,456
Mar 24, 2023 16:09	Yuriy Lyfenko	CPPg++9.3.0	Success	4,481
Mar 24, 2023 16:08	Yuriy Lyfenko	CPPg++9.3.0	Success	4,494
Mar 24, 2023 16:08	Yuriy Lyfenko	CPPg++9.3.0	Success	4,547
Mar 24, 2023 16:07	Yuriy Lyfenko	CPPg++9.3.0	Success	4,482
Mar 24, 2023 16:07	Yuriy Lyfenko	CPPg++9.3.0	Success	4,487
Mar 24, 2023 16:06	Yuriy Lyfenko	CPPg++9.3.0	Success	4,572
Mar 24, 2023 16:05	Yuriy Lyfenko	CPPg++9.3.0	Success	19,074
Mar 23, 2023 21:05	Yurkov Aleksey	CPPg++9.3.0	Success	5,021
Mar 23, 2023 21:04	Yurkov Aleksey	CPPclang++10.0.0	Success	5,170
Mar 23, 2023 21:02	Yurkov Aleksey	CPPg++9.3.0	Success	5,020+423.65 RP
Mar 23, 2023 09:02	Sergey Stremin	RUSTrust-1.68.0	Success	12,043+46.38 RP
Mar 23, 2023 08:39	Sergey Stremin	RUSTrust-1.68.0	Error
Mar 22, 2023 22:52	Yurkov Aleksey	CPPg++9.3.0	Success	6,386
Mar 22, 2023 22:51	Yurkov Aleksey	CPPg++9.3.0	Success	12,503
Mar 22, 2023 22:48	Yurkov Aleksey	CPPg++9.3.0	Success	12,415
Mar 22, 2023 22:44	Yurkov Aleksey	CPPg++9.3.0	Success	12,270
Mar 22, 2023 22:42	Yurkov Aleksey	CPPg++9.3.0	Error
Mar 22, 2023 17:16	Sergey Stremin	RUSTrust-1.68.0	Success	18,598
Mar 22, 2023 16:19	Sergey Stremin	RUSTrust-1.68.0	Error
Mar 22, 2023 14:25	Sergey Stremin	RUSTrust-1.68.0	Error
Mar 22, 2023 05:59	Sergey Stremin	RUSTrust-1.68.0	Success	12,389+8.56 RP
Mar 21, 2023 10:47	Yurkov Aleksey	CPPg++9.3.0	Success	12,002
Mar 21, 2023 10:47	Yurkov Aleksey	CPPg++9.3.0	Success	11,585
Mar 21, 2023 09:58	Yurkov Aleksey	CPPg++9.3.0	Success	12,562
Mar 21, 2023 09:24	Yurkov Aleksey	CPPg++9.3.0	Success	12,129
Mar 21, 2023 09:22	Yurkov Aleksey	CPPg++9.3.0	Success	12,152
Mar 21, 2023 09:20	Yurkov Aleksey	CPPg++9.3.0	Success	12,129
Mar 21, 2023 06:03	Alexander Monakov	CPPg++9.3.0	Success	4,358+2'294.63 RP
Mar 21, 2023 05:32	Yuriy Lyfenko	CPPg++9.3.0	Success	12,819
Mar 21, 2023 05:14	Yuriy Lyfenko	CPPg++9.3.0	Success	4,518
Mar 21, 2023 05:10	Yuriy Lyfenko	CPPg++9.3.0	Success	4,527
Mar 21, 2023 05:03	Yuriy Lyfenko	CPPg++9.3.0	Success	4,595
Mar 21, 2023 05:01	Yuriy Lyfenko	CPPg++9.3.0	Success	5,628
Mar 21, 2023 05:01	Yuriy Lyfenko	CPPg++9.3.0	Success	4,581
Mar 21, 2023 04:59	Yuriy Lyfenko	CPPg++9.3.0	Success	18,040

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