[PATCH] D38417: [test-suite] Adding HACCKernels app

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

In https://reviews.llvm.org/D38417#918942, @zvi wrote:

> Since the final commit of this patch, https://reviews.llvm.org/rL317483, the AVX2 buildbot is broken: http://lab.llvm.org:8011/builders/clang-cmake-x86_64-avx2-linux/builds/1402
>
> Brian, will you be able to look into this failure right away? If not, please consider reverting the commit until we get this sorted out. If you believe the failure is due to a bug in LLVM, please create a bug report. Thanks.


As noted in off-list email, on x86 I'm seeing this output:
$ ./317576fastbroadwell 450
Iterations: 450
Gravity Short-Range-Force Kernel (4th Order): 34376.3 **689.585** -2378.97: 0.088137 s
Gravity Short-Range-Force Kernel (5th Order): 34361.8 689.281 -2378.1: 0.089248 s
Gravity Short-Range-Force Kernel (6th Order): 34360.9 689.252 -2378.1: 0.091363 s

While the HACCKernels.reference_output is:
Iterations: 450
Gravity Short-Range-Force Kernel (4th Order): 34376.3 **689.584** -2378.97
Gravity Short-Range-Force Kernel (5th Order): 34361.8 689.281 -2378.1
Gravity Short-Range-Force Kernel (6th Order): 34360.9 689.252 -2378.1

If this test is being built with -ffast-math, we should add an FP tolerance to the output verification?


Repository:
  rL LLVM

https://reviews.llvm.org/D38417