Sum of prime numbers

Compute the sum of all prime numbers in a stream of binary integers as fast as possible.

Input: 1 000 000 uint32 values in little-endian binary on STDIN (4 bytes each).

Output: The uint64 sum of all values that are prime, printed as a decimal string.

Restrictions:30s256Mb 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.

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vahookScore: 3,393Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 7, 2026 19:09	3,338	18,496,136	979,000	1,958,000	2,510,848
2	Feb 7, 2026 06:03	3,355	18,239,003	984,000	1,968,000	2,494,464
3	Feb 7, 2026 19:09	3,363	17,899,873	986,000	1,973,000	2,494,464
4	Feb 7, 2026 06:03	3,365	19,905,323	987,000	1,974,000	2,273,280
5	Feb 7, 2026 06:03	3,366	22,603,742	987,000	1,975,000	2,502,656
6	Feb 7, 2026 19:09	3,366	18,171,547	987,000	1,975,000	2,498,560
7	Feb 7, 2026 19:09	3,373	18,224,445	989,000	1,979,000	2,498,560
8	Feb 7, 2026 06:03	3,378	18,151,042	991,000	1,982,000	2,277,376
9	Feb 7, 2026 06:03	3,380	21,316,197	991,000	1,983,000	2,277,376
10	Feb 7, 2026 05:56	3,383	16,737,872	992,000	1,985,000	2,535,424
11	Feb 7, 2026 05:52	3,385	18,784,998	993,000	1,986,000	2,502,656
12	Feb 7, 2026 05:51	3,386	21,926,675	993,000	1,987,000	2,490,368
13	Feb 7, 2026 06:03	3,386	17,363,324	2,980,000	0	2,490,368
14	Feb 7, 2026 19:09	3,386	22,414,010	993,000	1,987,000	2,277,376
15	Feb 7, 2026 05:55	3,389	22,272,989	994,000	1,988,000	2,494,464
16	Feb 7, 2026 19:09	3,393	21,343,333	995,000	1,991,000	2,494,464
17	Feb 7, 2026 06:03	3,393	24,271,755	995,000	1,991,000	2,277,376
18	Feb 7, 2026 06:03	3,395	20,488,226	996,000	1,992,000	2,535,424
19	Feb 7, 2026 05:51	3,395	24,031,670	996,000	1,992,000	2,490,368
20	Feb 7, 2026 05:51	3,400	18,504,330	997,000	1,995,000	2,498,560
21	Feb 7, 2026 05:56	3,402	21,414,894	998,000	1,996,000	2,498,560
22	Feb 7, 2026 05:55	3,403	19,912,569	998,000	1,997,000	2,277,376
23	Feb 7, 2026 19:09	3,403	18,879,926	998,000	1,997,000	2,506,752
24	Feb 7, 2026 05:56	3,406	21,287,879	999,000	1,998,000	2,502,656
25	Feb 7, 2026 06:03	3,406	16,110,953	999,000	1,998,000	2,535,424
26	Feb 7, 2026 05:52	3,407	18,643,984	999,000	1,999,000	2,502,656
27	Feb 7, 2026 19:09	3,409	14,342,844	1,000,000	2,000,000	2,531,328
28	Feb 7, 2026 05:52	3,443	17,562,326	1,010,000	2,020,000	2,281,472
29	Feb 7, 2026 19:09	3,467	20,019,673	1,017,000	2,034,000	2,281,472
30	Feb 7, 2026 05:55	3,474	24,984,948	1,019,000	2,038,000	2,486,272

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