[ 
https://issues.apache.org/jira/browse/SPARK-28519?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

huangtianhua updated SPARK-28519:
---------------------------------
    Description: 
Sorry to disturb again, we ran unit tests on arm64 instance, and there are 
other sql tests failed:
 - pgSQL/float8.sql *** FAILED ***
 Expected "{color:#f691b2}0.549306144334054[9]{color}", but got 
"{color:#f691b2}0.549306144334054[8]{color}" Result did not match for query #56
 SELECT atanh(double('0.5')) (SQLQueryTestSuite.scala:362)
 - pgSQL/numeric.sql *** FAILED ***
 Expected "2 {color:#59afe1}2247902679199174[72{color} 
224790267919917955.1326161858
 4 7405685069595001 7405685069594999.0773399947
 5 5068226527.321263 5068226527.3212726541
 6 281839893606.99365 281839893606.9937234336
 7 {color:#d04437}1716699575118595840{color} 1716699575118597095.4233081991
 8 167361463828.0749 167361463828.0749132007
 9 {color:#14892c}107511333880051856]{color} 107511333880052007....", but got 
"2 {color:#59afe1}2247902679199174[40{color} 224790267919917955.1326161858
 4 7405685069595001 7405685069594999.0773399947
 5 5068226527.321263 5068226527.3212726541
 6 281839893606.99365 281839893606.9937234336
 7 {color:#d04437}1716699575118595580{color} 1716699575118597095.4233081991
 8 167361463828.0749 167361463828.0749132007
 9 {color:#14892c}107511333880051872]{color} 107511333880052007...." Result did 
not match for query #496
 SELECT t1.id1, t1.result, t2.expected
 FROM num_result t1, num_exp_power_10_ln t2
 WHERE t1.id1 = t2.id
 AND t1.result != t2.expected (SQLQueryTestSuite.scala:362)

The first test failed, because the value of math.log(3.0) is different on 
aarch64:

# on x86_64:
 scala> math.log(3.0)
 res50: Double = 1.0986122886681098

# on aarch64:
 scala> math.log(3.0)
 res19: Double = 1.0986122886681096

And I tried math.log(4.0), math.log(5.0) and they are same, I don't know why 
math.log(3.0) is so special? But the result is different indeed on aarch64.

The second test failed, because some values of pow() is different on aarch64, 
according to the test, I took tests on aarch64 and x86_64, take '-83028485' as 
example:

# on x86_64:
 scala> import java.lang.Math._
 import java.lang.Math._
 scala> abs(-83028485)
 res3: Int = 83028485
 scala> var a = -83028485
 a: Int = -83028485
 scala> abs(a)
 res4: Int = 83028485
 scala> math.log(abs(a))
 res5: Double = 18.234694299654787
 scala> pow(10, math.log(abs(a)))
 res6: Double ={color:#d04437} 1.71669957511859584E18{color}

{color:#d04437}# {color}on aarch64:

scala> var a = -83028485

a: Int = -83028485

scala> abs(a)

res38: Int = 83028485

scala> math.log(abs(a))

res39: Double = 18.234694299654787

scala> pow(10, math.log(abs(a)))

res40: Double = {color:#d04437}1.71669957511859558E18{color}

  was:
Sorry to disturb again, we ran unit tests on arm64 instance, and there are 
other sql tests failed:
 - pgSQL/float8.sql *** FAILED ***
 Expected "{color:#f691b2}0.549306144334054[9]{color}", but got 
"{color:#f691b2}0.549306144334054[8]{color}" Result did not match for query #56
 SELECT atanh(double('0.5')) (SQLQueryTestSuite.scala:362)
 - pgSQL/numeric.sql *** FAILED ***
 Expected "2 {color:#59afe1}2247902679199174[72{color} 
224790267919917955.1326161858
 4 7405685069595001 7405685069594999.0773399947
 5 5068226527.321263 5068226527.3212726541
 6 281839893606.99365 281839893606.9937234336
 7 {color:#d04437}1716699575118595840{color} 1716699575118597095.4233081991
 8 167361463828.0749 167361463828.0749132007
 9 {color:#14892c}107511333880051856]{color} 107511333880052007....", but got 
"2 {color:#59afe1}2247902679199174[40{color} 224790267919917955.1326161858
 4 7405685069595001 7405685069594999.0773399947
 5 5068226527.321263 5068226527.3212726541
 6 281839893606.99365 281839893606.9937234336
 7 {color:#d04437}1716699575118595580{color} 1716699575118597095.4233081991
 8 167361463828.0749 167361463828.0749132007
 9 {color:#14892c}107511333880051872]{color} 107511333880052007...." Result did 
not match for query #496
 SELECT t1.id1, t1.result, t2.expected
 FROM num_result t1, num_exp_power_10_ln t2
 WHERE t1.id1 = t2.id
 AND t1.result != t2.expected (SQLQueryTestSuite.scala:362)

The first test failed, because the value of math.log(3.0) is different on 
aarch64:

# on x86_64:
 scala> math.log(3.0)
 res50: Double = 1.0986122886681098

# on aarch64:
 scala> math.log(3.0)
 res19: Double = 1.0986122886681096

And I tried math.log(4.0), math.log(5.0) and they are same, I don't know why 
math.log(3.0) is so special? But the result is different indeed on aarch64.

The second test failed, because some values of pow() is different on aarch64, 
according to the test, I took tests on aarch64 and x86_64, take '-83028485' as 
example:

# on x86_64:
 scala> import java.lang.Math._
 import java.lang.Math._
 scala> abs(-83028485)
 res3: Int = 83028485
 scala> var a = -83028485
 a: Int = -83028485
 scala> abs(a)
 res4: Int = 83028485
 scala> math.log(abs(a))
 res5: Double = 18.234694299654787
 scala> pow(10, math.log(abs(a)))
 res6: Double ={color:#d04437} 1.71669957511859584E18{color}

# on aarch64:
 scala> var a = -83028485
 a: Int = -83028485
 scala> abs(a)
 res38: Int = 83028485
 scala> math.log(abs(a))
 res39: Double = 18.234694299654787
 scala> pow(10, math.log(abs(a)))
 res40: Double = {color:#d04437}1.71669957511859558E18{color}


> Tests failed on aarch64 due the value of math.log and power function is 
> different
> ---------------------------------------------------------------------------------
>
>                 Key: SPARK-28519
>                 URL: https://issues.apache.org/jira/browse/SPARK-28519
>             Project: Spark
>          Issue Type: Test
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: huangtianhua
>            Priority: Major
>
> Sorry to disturb again, we ran unit tests on arm64 instance, and there are 
> other sql tests failed:
>  - pgSQL/float8.sql *** FAILED ***
>  Expected "{color:#f691b2}0.549306144334054[9]{color}", but got 
> "{color:#f691b2}0.549306144334054[8]{color}" Result did not match for query 
> #56
>  SELECT atanh(double('0.5')) (SQLQueryTestSuite.scala:362)
>  - pgSQL/numeric.sql *** FAILED ***
>  Expected "2 {color:#59afe1}2247902679199174[72{color} 
> 224790267919917955.1326161858
>  4 7405685069595001 7405685069594999.0773399947
>  5 5068226527.321263 5068226527.3212726541
>  6 281839893606.99365 281839893606.9937234336
>  7 {color:#d04437}1716699575118595840{color} 1716699575118597095.4233081991
>  8 167361463828.0749 167361463828.0749132007
>  9 {color:#14892c}107511333880051856]{color} 107511333880052007....", but got 
> "2 {color:#59afe1}2247902679199174[40{color} 224790267919917955.1326161858
>  4 7405685069595001 7405685069594999.0773399947
>  5 5068226527.321263 5068226527.3212726541
>  6 281839893606.99365 281839893606.9937234336
>  7 {color:#d04437}1716699575118595580{color} 1716699575118597095.4233081991
>  8 167361463828.0749 167361463828.0749132007
>  9 {color:#14892c}107511333880051872]{color} 107511333880052007...." Result 
> did not match for query #496
>  SELECT t1.id1, t1.result, t2.expected
>  FROM num_result t1, num_exp_power_10_ln t2
>  WHERE t1.id1 = t2.id
>  AND t1.result != t2.expected (SQLQueryTestSuite.scala:362)
> The first test failed, because the value of math.log(3.0) is different on 
> aarch64:
> # on x86_64:
>  scala> math.log(3.0)
>  res50: Double = 1.0986122886681098
> # on aarch64:
>  scala> math.log(3.0)
>  res19: Double = 1.0986122886681096
> And I tried math.log(4.0), math.log(5.0) and they are same, I don't know why 
> math.log(3.0) is so special? But the result is different indeed on aarch64.
> The second test failed, because some values of pow() is different on aarch64, 
> according to the test, I took tests on aarch64 and x86_64, take '-83028485' 
> as example:
> # on x86_64:
>  scala> import java.lang.Math._
>  import java.lang.Math._
>  scala> abs(-83028485)
>  res3: Int = 83028485
>  scala> var a = -83028485
>  a: Int = -83028485
>  scala> abs(a)
>  res4: Int = 83028485
>  scala> math.log(abs(a))
>  res5: Double = 18.234694299654787
>  scala> pow(10, math.log(abs(a)))
>  res6: Double ={color:#d04437} 1.71669957511859584E18{color}
> {color:#d04437}# {color}on aarch64:
> scala> var a = -83028485
> a: Int = -83028485
> scala> abs(a)
> res38: Int = 83028485
> scala> math.log(abs(a))
> res39: Double = 18.234694299654787
> scala> pow(10, math.log(abs(a)))
> res40: Double = {color:#d04437}1.71669957511859558E18{color}



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