You are viewing a plain text version of this content. The canonical link for it is here.

Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2020/09/12 18:59:14 UTC

[GitHub] [arrow] andygrove commented on a change in pull request #8173: ARROW-9980: [Rust] [Parquet] Fix clippy lints

andygrove commented on a change in pull request #8173:
URL: https://github.com/apache/arrow/pull/8173#discussion_r487438276



##########
File path: rust/arrow/src/compute/kernels/aggregate.rs
##########
@@ -121,7 +121,7 @@ mod tests {
     #[test]
     fn test_primitive_array_float_sum() {
         let a = Float64Array::from(vec![1.1, 2.2, 3.3, 4.4, 5.5]);
-        assert_eq!(16.5, sum(&a).unwrap());
+        assert!(16.5 - sum(&a).unwrap() < f64::EPSILON);

Review comment:
       The results could vary depending on the hardware we are running on. For now, we are assuming that everything is running on CPU but there is no reason why we couldn't have GPU versions of these kernels in the future, and there could be differences in precision in this case.
   
   https://docs.nvidia.com/cuda/floating-point/index.html




----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
users@infra.apache.org