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Value-initialize result of MaxLoc reduction to avoid maybe uninitialized warning #1383

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merged 1 commit into from
Apr 13, 2022

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@dalg24 dalg24 commented Apr 13, 2022

Tentative fix for kokkos/kokkos#4959
Value-initialization will zero-initialize the ValLocScalar data members.

To be honest I don't quite see how the warning was not there before and how it is related to the "volatile" changes in Kokkos.

cc @PhilMiller

@dalg24 dalg24 requested a review from ndellingwood April 13, 2022 13:58
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Status Flag 'Pre-Test Inspection' - - This Pull Request Requires Inspection... The code must be inspected by a member of the Team before Testing/Merging
NO INSPECTION HAS BEEN PERFORMED ON THIS PULL REQUEST! - This PR must be inspected by setting label 'AT: PRE-TEST INSPECTED'.

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Thanks for the fix

@lucbv lucbv added the AT: PRE-TEST INSPECTED Mark this PR as approved for testing. label Apr 13, 2022
@kokkos-devops-admin kokkos-devops-admin removed the AT: PRE-TEST INSPECTED Mark this PR as approved for testing. label Apr 13, 2022
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Status Flag 'Pre-Test Inspection' - SUCCESS: The last commit to this Pull Request has been INSPECTED by label AT: PRE-TEST INSPECTED! Autotester is Removing Label; This inspection will remain valid until a new commit to source branch is performed.

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Status Flag 'Pull Request AutoTester' - Testing Jenkins Projects:

Pull Request Auto Testing STARTING (click to expand)

Build Information

Test Name: KokkosKernels_PullRequest_Tpls_CUDA9_Tpls_CUDA10_Tpls_CUDA10_LayoutRight_GCC720_Light_GCC720_GCC740

  • Build Num: 171
  • Status: STARTED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_GCC720

  • Build Num: 942
  • Status: STARTED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_GCC720_Light_LayoutRight

  • Build Num: 586
  • Status: STARTED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_Tpls_GCC720

  • Build Num: 930
  • Status: STARTED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_Tpls_INTEL18

  • Build Num: 917
  • Status: STARTED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_CLANG1001

  • Build Num: 322
  • Status: STARTED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Using Repos:

Repo: KOKKOSKERNELS (dalg24/kokkos-kernels)
  • Branch: value_initialize_maxloc
  • SHA: 99f91e4
  • Mode: TEST_REPO

Pull Request Author: dalg24

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I figured this would be the immediate fix.

I'm quite curious why the compiler thinks this might not be initialized, though. Possibly just a quirk of it always being passed by reference, and never assigned.

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Thanks @dalg24 @PhilMiller !

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Status Flag 'Pull Request AutoTester' - Jenkins Testing: all Jobs PASSED

Pull Request Auto Testing has PASSED (click to expand)

Build Information

Test Name: KokkosKernels_PullRequest_Tpls_CUDA9_Tpls_CUDA10_Tpls_CUDA10_LayoutRight_GCC720_Light_GCC720_GCC740

  • Build Num: 171
  • Status: PASSED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_GCC720

  • Build Num: 942
  • Status: PASSED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_GCC720_Light_LayoutRight

  • Build Num: 586
  • Status: PASSED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_Tpls_GCC720

  • Build Num: 930
  • Status: PASSED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_Tpls_INTEL18

  • Build Num: 917
  • Status: PASSED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

Build Information

Test Name: KokkosKernels_PullRequest_CLANG1001

  • Build Num: 322
  • Status: PASSED

Jenkins Parameters

Parameter Name Value
KOKKOSKERNELS_SOURCE_BRANCH value_initialize_maxloc
KOKKOSKERNELS_SOURCE_REPO https://github.com/dalg24/kokkos-kernels
KOKKOSKERNELS_SOURCE_SHA 99f91e4
KOKKOSKERNELS_TARGET_BRANCH develop
KOKKOSKERNELS_TARGET_REPO https://github.com/kokkos/kokkos-kernels
KOKKOSKERNELS_TARGET_SHA 403a417
PR_LABELS
PULLREQUESTNUM 1383
TEST_REPO_ALIAS KOKKOSKERNELS

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Status Flag 'Pre-Merge Inspection' - SUCCESS: The last commit to this Pull Request has been INSPECTED AND APPROVED by [ PhilMiller lucbv ]!

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Status Flag 'Pull Request AutoTester' - Pull Request MUST BE MERGED MANUALLY BY Project Team - This Repo does not support Automerge

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5 participants