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
Sep 27, 2023 13:21	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 13:20	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 13:20	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 13:18	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 13:15	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 13:12	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 13:10	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 13:09	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 13:03	apuxbt	CPPg++9.3.0	Success	11,329+855.77 RP
Sep 27, 2023 12:55	apuxbt	CPPg++9.3.0	Success	376,097
Sep 27, 2023 12:50	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 12:48	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 12:47	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 12:41	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 12:41	apuxbt	CPPg++9.3.0	Success	371,489+26.92 RP
Aug 22, 2023 18:34	Ilya Aniskovets	CPPg++9.3.0	Success	372,118+26.87 RP
Jul 13, 2023 00:27	gchebanov	CPPg++9.3.0	Success	3,397+37.64 RP
Jul 13, 2023 00:14	gchebanov	CPPg++9.3.0	Success	3,441+20.96 RP
Jul 13, 2023 00:12	gchebanov	CPPg++9.3.0	Success	3,466+154.42 RP
Jul 13, 2023 00:02	gchebanov	CPPg++9.3.0	Success	3,665
Jul 13, 2023 00:01	gchebanov	CPPg++9.3.0	Success	3,662+249.97 RP
Jul 12, 2023 23:44	gchebanov	CPPg++9.3.0	Success	4,031+20.75 RP
Jul 12, 2023 23:37	gchebanov	CPPg++9.3.0	Error
Jul 12, 2023 23:15	gchebanov	CPPg++9.3.0	Error
Jul 12, 2023 23:15	gchebanov	CPPg++9.3.0	Error
Jul 12, 2023 23:13	gchebanov	CPPg++9.3.0	Error
Jul 12, 2023 23:12	gchebanov	CPPg++9.3.0	Error
Jul 12, 2023 23:12	gchebanov	CPPg++9.3.0	Error
Jul 12, 2023 23:11	gchebanov	CPPg++9.3.0	Error
Jul 12, 2023 22:58	gchebanov	CPPg++9.3.0	Success	4,190
Jul 12, 2023 22:54	gchebanov	CPPg++9.3.0	Success	5,397
Jul 12, 2023 22:54	gchebanov	CPPg++9.3.0	Success	5,371
Jul 12, 2023 22:45	gchebanov	CPPg++9.3.0	Success	4,068
Jul 12, 2023 22:43	gchebanov	CPPclang++10.0.0	Success	4,130
Jul 12, 2023 22:42	gchebanov	CPPclang++10.0.0	Success	4,142
Jul 12, 2023 22:42	gchebanov	CPPg++9.3.0	Success	4,157
Jul 12, 2023 22:38	gchebanov	CPPg++9.3.0	Success	4,220
Jul 12, 2023 21:50	gchebanov	CPPg++9.3.0	Success	4,208
Jul 12, 2023 21:47	gchebanov	CPPg++9.3.0	Success	4,288
Jul 12, 2023 21:47	gchebanov	CPPg++9.3.0	Success	4,257
Jul 12, 2023 21:31	gchebanov	CPPg++9.3.0	Success	4,247
Jul 12, 2023 21:16	gchebanov	CPPg++9.3.0	Success	4,292
Jul 12, 2023 20:47	gchebanov	CPPg++9.3.0	Success	4,600
Jul 12, 2023 20:47	gchebanov	CPPg++9.3.0	Success	4,538
Jul 12, 2023 20:47	gchebanov	CPPg++9.3.0	Success	4,386
Jul 12, 2023 20:46	gchebanov	CPPg++9.3.0	Success	4,432
Jul 12, 2023 20:17	gchebanov	CPPg++9.3.0	Success	4,065+6.64 RP
Jul 12, 2023 20:17	gchebanov	CPPg++9.3.0	Success	4,076+2.41 RP
Jul 12, 2023 20:10	gchebanov	CPPg++9.3.0	Success	4,080+1'016.88 RP
Jul 12, 2023 19:59	gchebanov	CPPg++9.3.0	Success	24,638
Jul 12, 2023 19:57	gchebanov	CPPg++9.3.0	Success	20,558
Jul 12, 2023 19:54	gchebanov	CPPg++9.3.0	Success	23,604
Jul 12, 2023 19:52	gchebanov	CPPg++9.3.0	Error
Jul 12, 2023 19:50	gchebanov	CPPg++9.3.0	Success	20,616
Jul 12, 2023 19:43	gchebanov	CPPg++9.3.0	Success	55,319
Jul 12, 2023 19:32	gchebanov	CPPg++9.3.0	Success	6,973+30.20 RP
Jul 12, 2023 19:29	gchebanov	CPPg++9.3.0	Error
Jul 12, 2023 19:15	gchebanov	CPPg++9.3.0	Success	7,123+574.30 RP
Jul 12, 2023 18:48	gchebanov	CPPg++9.3.0	Success	12,054+14.67 RP
Jul 12, 2023 18:45	gchebanov	CPPg++9.3.0	Success	13,365
Jul 12, 2023 17:36	gchebanov	CPPg++9.3.0	Success	12,751
Jul 12, 2023 17:22	gchebanov	CPPg++9.3.0	Success	12,271+51.92 RP
Jul 8, 2023 23:10	Andrew Epstein	CPPg++9.3.0	Success	371,782+26.90 RP
Jul 5, 2023 19:56	gchebanov	CPPclang++10.0.0	Success	13,106+35.05 RP
Jul 5, 2023 19:50	gchebanov	CPPclang++10.0.0	Success	13,737+727.96 RP
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

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