andygrove commented on a change in pull request #8173:
URL: https://github.com/apache/arrow/pull/8173#discussion_r487438276
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File path: rust/arrow/src/compute/kernels/aggregate.rs
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@@ -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
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