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From "Niketan Pansare (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SYSTEMML-1975) Fix GPU tests for single precision
Date Thu, 26 Oct 2017 15:40:00 GMT
Niketan Pansare created SYSTEMML-1975:
-----------------------------------------

             Summary: Fix GPU tests for single precision
                 Key: SYSTEMML-1975
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1975
             Project: SystemML
          Issue Type: Bug
            Reporter: Niketan Pansare


The current GPU tests for single precision compares the results of double precision operation
on CPU with single precision operation on GPU. So, it is difficult to compare the results.
When we support single precision on CPU, we can rework the GPU tests to fix the following
tests:

{code}
Failed tests:
  NeuralNetworkOpTests.testConv2dBackwardFilter:324->GPUTests.assertEqualObjects:367->GPUTests.assertEqualMatrices:269
Relative error(0.000012) is more than threshold (0.000010). Expected = 25311.000000, Actual
= 25310.687500, differed at [0, 50]
  MatrixMultiplicationOpTest.matrixMatrixTest2:161->assertMatrixMultiplication:261->GPUTests.assertEqualObjects:367->GPUTests.assertEqualMatrices:269
Relative error(1.000000) is more than threshold (0.000010). Expected = -0.002456, Actual =
0.000000, differed at [0, 0]
  MatrixMultiplicationOpTest.matrixMatrixTest4:209->assertMatrixMultiplication:261->GPUTests.assertEqualObjects:367->GPUTests.assertEqualMatrices:269
Relative error(0.000024) is more than threshold (0.000010). Expected = 0.573809, Actual =
0.573822, differed at [5, 127]
  MatrixMultiplicationOpTest.commonCaseDLMatrixMatrixTest2:137->assertMatrixMultiplication:261->GPUTests.assertEqualObjects:367->GPUTests.assertEqualMatrices:269
Relative error(0.000013) is more than threshold (0.000010). Expected = -0.922950, Actual =
-0.922939, differed at [0, 13]
  MatrixMultiplicationOpTest.transposeSelfMatrixMultiply:235->GPUTests.assertEqualObjects:367->GPUTests.assertEqualMatrices:272
expected:<0.0> but was:<1.9291085004806519>
  ScalarMatrixElementwiseOpTests.testModulusLeftScalar:167->runScalarMatrixElementWiseTests:261->GPUTests.assertEqualObjects:367->GPUTests.assertEqualMatrices:269
Relative error(1.000000) is more than threshold (0.000010). Expected = 0.078125, Actual =
0.000000, differed at [1500, 22]
  ScalarMatrixElementwiseOpTests.testIntegerDivideLeftScalar:157->runScalarMatrixElementWiseTests:261->GPUTests.assertEqualObjects:367->GPUTests.assertEqualMatrices:269
Relative error(0.015873) is more than threshold (0.000010). Expected = 63.000000, Actual =
64.000000, differed at [1500, 22]

{code}

[~nakul02]



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