AccelerateHS/accelerate

Speed up test suite

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#412 建立於 2018年1月15日

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 (10 留言) (0 反應) (0 負責人)Haskell (830 star) (112 fork)batch import
good first issuehelp wanted

描述

The standard accelerate test suite, used by all the backends, can be quite slow. Several of the tests are significantly slower than the others, for example segmented folds and scans, which I believe is because the reference implementations are very inefficient. Writing some more efficient reference implementations (e.g. using Data.Vector.Unboxed) should help speed things up.

貢獻者指南

技術棧
無
領域
testingperformance
議題類型
performance
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-2 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Haskell knowledgeData.Vector.UnboxedAccelerate library familiarity
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
50
研究方向
Investigate the test suite to identify the slow tests, specifically segmented folds and scans. Look at the current reference implementations, likely in a test file, and rewrite them using Data.Vector.Unboxed for efficiency. Compare performance before and after. Check if there are any existing PRs or comments on this issue for guidance.