Attempt to fix segfault CalculateAverage_zerninv.java

[zerninv]

Check List:

• You have run ./mvnw verify and the project builds successfully
• Tests pass (./test.sh zerninv shows no differences between expected and actual outputs)
• All formatting changes by the build are committed
• Your launch script is named calculate_average_zerninv.sh (make sure to match casing of your GH user name) and is executable
• Output matches that of calculate_average_baseline.sh
• For new entries, or after substantial changes: When implementing custom hash structures, please point to where you deal with hash collisions (line number)

• Execution time: 13s
• Execution time of reference implementation: 6m

I see that my solution gives segfault for 10k dataset. Unfortunately can not reproduce it locally so change my solution a bit as an attempt to avoid segfault

[gunnarmorling]

The output differs from the expected one for the 10K key set now:

Validating calculate_average_zerninv.sh -- measurements_10K_1B.txt
Picking up existing native image 'target/CalculateAverage_zerninv_image', delete the file to select JVM mode.
2408c2408
< arlisleGarissaLisalaNitr;-11.0;17.6;48.5
---
> arlisleGarissaLisalaNitr;-11.0;17.7;48.5
3914c3914
< fkl;-16.4;14.8;44.4
---
> fkl;-16.4;14.7;44.4

FAILURE: ./test.sh zerninv measurements_10K_1B.txt failed

[zerninv]

@gunnarmorling would you mind to check it one more time. locally outputs match with baseline (or top) solution.

[gunnarmorling]

00:03.785 now, passing for the 10K keyset too. Nice!

[gunnarmorling]

Hey @zerninv!

Congrats again on being in the Top 20 of the One Billion Row Challenge!

To celebrate this amazing achievement, I would like to send you a 1BRC t-shirt and coffee mug. To claim your prize, fill out this form by Feb 18. After submitting the form, please provide a comment with the random value you've specified in the form, so that I know it is you who submitted it.

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Thanks a lot for participating in 1BRC,

--Gunnar

[zerninv]

Hey @gunnarmorling,
Thanks again for this challenge.
My random is: 11960 13079