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Concurrency or not concurrency? about wordcount HOT 3 OPEN

NobbZ avatar NobbZ commented on September 16, 2024
Concurrency or not concurrency?

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Comments (3)

juditacs avatar juditacs commented on September 16, 2024

I see two possibilities for each language:

  1. concurrency can be enabled with a cli-switch/subcommand/whatever, the code is the same
  2. the concurrent code is different from the single-threaded,

If we choose the Makefile structure you suggested, there could be a run and a run-parallel command (if it is implemented). What do you think?

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NobbZ avatar NobbZ commented on September 16, 2024

Sounds reasonable.

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michaelortmann avatar michaelortmann commented on September 16, 2024

the java implementation uses threading:

$ cat data/huwiki-latest-pages-meta-current.xml | /usr/bin/time -v java -Xms2G -Xmx8G -classpath java:java/zah-0.6.jar WordCountOptimized >out-java.txt
[...]
	Percent of CPU this job got: 141%
[...]
$ java --version
openjdk 21.0.2 2024-01-16
OpenJDK Runtime Environment (build 21.0.2+13)
OpenJDK 64-Bit Server VM (build 21.0.2+13, mixed mode, sharing)
[...]

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