Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-4375077

HS1.3.1(solx86) fails in intensive numeric calculations

    XMLWordPrintable

    Details

    • Subcomponent:
    • Resolved In Build:
      ladybird
    • CPU:
      x86
    • OS:
      solaris_8
    • Verification:
      Verified

      Description



      Name: elC94547 Date: 09/29/2000



      Java 2 SDK 1.3.1-b1 (solx86) intermittantly fails the testbase_nsk tests:
          nsk/stress/numeric/numeric001
          nsk/stress/numeric/numeric002
          nsk/stress/numeric/numeric005
          nsk/stress/numeric/numeric006
          nsk/stress/numeric/numeric009
          nsk/stress/numeric/numeric010
      which check JVM accuracy in intensive numeric calculations. The tests
      numeric001,002,010 check if a matrix product AxA is correctly computed
      in multi-thread calculations, and the tests numeric005,006,009 check
      if a matrix product AxA is correctly computed in single thread.

      The newly observed failures looks like regression of the known bug previously
      fixed in HS 1.0.1 and in HS 1.3 (both on Solaris for SPARC):
          4259964 (P3/S3) intermittent error in multi-thread numeric calculations

      To reproduce these failures, please try the mentioned tests found below
      the 'src' directory in the testbase:
          /net/sqesvr/export/vsn/VM/testbase/testbase_nsk

      Compile those tests as follows:
          javac numeric001.java
          . . .
          javac numeric010.java

      Start those tests as follows:
          java numeric001 300
          java numeric002 300
          java numeric010 200
      and as:
          java numeric005 300 3
          java numeric006 300 3
          java numeric009 200 2

      Here:
          200,300: matrix size (200x200 or 300x300),
                   and number of threads for multi-thread tests,
          2,3: number of iterations in single-thread tests.

      ======================================================================

        Attachments

          Issue Links

            Activity

              People

              Assignee:
              elatkinsunw Eugene Latkin (Inactive)
              Reporter:
              elatkinsunw Eugene Latkin (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              0 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:
                Imported:
                Indexed: