Hi shane,
Thanks for your reply. I will wait for you back. ;-)

Thanks,
Best regards
ZhaoBo



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19/08/06
上午09:06:23

shane knapp <skn...@berkeley.edu> 于2019年8月2日周五 下午10:41写道:

> i'm out of town, but will answer some of your questions next week.
>
> On Fri, Aug 2, 2019 at 2:39 AM bo zhaobo <bzhaojyathousa...@gmail.com>
> wrote:
>
>>
>> Hi Team,
>>
>> Any updates about the CI details? ;-)
>>
>> Also, I will also need your kind help about Spark QA test, could any one
>> can tell us how to trigger that tests? When? How?  So far, I haven't
>> notices how it works.
>>
>> Thanks
>>
>> Best Regards,
>>
>> ZhaoBo
>>
>>
>>
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>>  19/08/02
>> 下午05:37:30
>>
>> bo zhaobo <bzhaojyathousa...@gmail.com> 于2019年7月31日周三 上午11:56写道:
>>
>>> Hi, team.
>>> I want to make the same test on ARM like existing CI does(x86). As
>>> building and testing the whole spark projects will cost too long time, so I
>>> plan to split them to multiple jobs to run for lower time cost. But I
>>> cannot see what the existing CI[1] have done(so many private scripts
>>> called), so could any CI maintainers help/tell us for how to split them and
>>> the details about different CI jobs does? Such as PR title contains [SQL],
>>> [INFRA], [ML], [DOC], [CORE], [PYTHON], [k8s], [DSTREAMS], [MLlib],
>>> [SCHEDULER], [SS],[YARN], [BUIILD] and etc..I found each of them seems run
>>> the different CI job.
>>>
>>> @shane knapp,
>>> Oh, sorry for disturb. I found your email looks like from 'berkeley.edu',
>>> are you the good guy who we are looking for help about this? ;-)
>>> If so, could you give some helps or advices? Thank you.
>>>
>>> Thank you very much,
>>>
>>> Best Regards,
>>>
>>> ZhaoBo
>>>
>>> [1] https://amplab.cs.berkeley.edu/jenkins
>>>
>>>
>>>
>>>
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>>>  19/07/31
>>> 上午11:53:36
>>>
>>> Tianhua huang <huangtianhua...@gmail.com> 于2019年7月29日周一 上午9:38写道:
>>>
>>>> @Sean Owen <sro...@gmail.com>  Thank you very much. And I saw your
>>>> reply comment in https://issues.apache.org/jira/browse/SPARK-28519, I
>>>> will test with modification and to see whether there are other similar
>>>> tests fail, and will address them together in one pull request.
>>>>
>>>> On Sat, Jul 27, 2019 at 9:04 PM Sean Owen <sro...@gmail.com> wrote:
>>>>
>>>>> Great thanks - we can take this to JIRAs now.
>>>>> I think it's worth changing the implementation of atanh if the test
>>>>> value just reflects what Spark does, and there's evidence is a little bit
>>>>> inaccurate.
>>>>> There's an equivalent formula which seems to have better accuracy.
>>>>>
>>>>> On Fri, Jul 26, 2019 at 10:02 PM Takeshi Yamamuro <
>>>>> linguin....@gmail.com> wrote:
>>>>>
>>>>>> Hi, all,
>>>>>>
>>>>>> FYI:
>>>>>> >> @Yuming Wang the results in float8.sql are from PostgreSQL
>>>>>> directly?
>>>>>> >> Interesting if it also returns the same less accurate result, which
>>>>>> >> might suggest it's more to do with underlying OS math libraries.
>>>>>> You
>>>>>> >> noted that these tests sometimes gave platform-dependent
>>>>>> differences
>>>>>> >> in the last digit, so wondering if the test value directly reflects
>>>>>> >> PostgreSQL or just what we happen to return now.
>>>>>>
>>>>>> The results in float8.sql.out were recomputed in Spark/JVM.
>>>>>> The expected output of the PostgreSQL test is here:
>>>>>> https://github.com/postgres/postgres/blob/master/src/test/regress/expected/float8.out#L493
>>>>>>
>>>>>> As you can see in the file (float8.out), the results other than atanh
>>>>>> also are different between Spark/JVM and PostgreSQL.
>>>>>> For example, the answers of acosh are:
>>>>>> -- PostgreSQL
>>>>>>
>>>>>> https://github.com/postgres/postgres/blob/master/src/test/regress/expected/float8.out#L487
>>>>>> 1.31695789692482
>>>>>>
>>>>>> -- Spark/JVM
>>>>>>
>>>>>> https://github.com/apache/spark/blob/master/sql/core/src/test/resources/sql-tests/results/pgSQL/float8.sql.out#L523
>>>>>> 1.3169578969248166
>>>>>>
>>>>>> btw, the PostgreSQL implementation for atanh just calls atanh in
>>>>>> math.h:
>>>>>>
>>>>>> https://github.com/postgres/postgres/blob/master/src/backend/utils/adt/float.c#L2606
>>>>>>
>>>>>> Bests,
>>>>>> Takeshi
>>>>>>
>>>>>>
>
> --
> Shane Knapp
> UC Berkeley EECS Research / RISELab Staff Technical Lead
> https://rise.cs.berkeley.edu
>

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