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https://issues.apache.org/jira/browse/SYSTEMML-1975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16221207#comment-16221207
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Niketan Pansare commented on SYSTEMML-1975:
-------------------------------------------
Following tests are failing for double precision:
{code}
Failed tests:
MatrixMultiplicationOpTest.matrixMatrixTest2:161->assertMatrixMultiplication:261->GPUTests.assertEqualObjects:367->GPUTests.assertEqualMatrices:267
Relative error(1.000000) is more than threshold (0.000010). Expected =
-0.002456, Actual = 0.000000, differed at [0, 0]
MatrixMultiplicationOpTest.transposeSelfMatrixMultiply:235->GPUTests.assertEqualObjects:367->GPUTests.assertEqualMatrices:272
expected:<0.0> but was:<1.929108490094312>
{code}
My guess is there is likely a bug caught by these two tests and other tests are
likely related to precision.
> 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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