fix: enable joblib.Parallel memory mapping

[eonu]

Enable joblib.Parallel memory mapping

• Enable memmapping by removing max_nbytes=None.
• Change mmap_mode="r" to mmap_mode="r+" to fix buffer error.

Checklist

• I have added new tests (if necessary).
• I have ensured that tests and coverage are passing on CI.
• I have updated any relevant documentation (if necessary).
• I have used a descriptive pull request title.

[coveralls]

Pull Request Test Coverage Report for Build 7052dcbb-7353-4690-aba4-4de903e61b3c

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 82.59%

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Totals
Change from base Build c7acf5ec-3f22-409b-94b8-6f3066c03ed8:	0.0%
Covered Lines:	1167
Relevant Lines:	1413

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💛 - Coveralls