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https://issues.apache.org/jira/browse/ARROW-11427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17279467#comment-17279467
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Ali Cetin commented on ARROW-11427:
-----------------------------------
[~apitrou], I have tested the fix in WS2012 and WS2016. I can verify that it
works. It defaults to avx2 in WS2012 and avx512 in WS2016. (y)
> [C++] Arrow uses AVX512 instructions even when not supported by the OS
> ----------------------------------------------------------------------
>
> Key: ARROW-11427
> URL: https://issues.apache.org/jira/browse/ARROW-11427
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, Python
> Environment: Windows Server 2012 Datacenter, Azure VM (D2_v2), Intel
> Xeon Platinum 8171m
> Reporter: Ali Cetin
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> *Update*: Azure (D2_v2) VM no longer spins-up with Xeon Platinum 8171m, so
> I'm unable to test it with other OS's. Azure VM's are assigned different
> type of CPU's of same "class" depending on availability. I will try my "luck"
> later.
> VM's w/ Xeon Platinum 8171m running on Azure (D2_v2) start crashing after
> upgrading from pyarrow 2.0 to pyarrow 3.0. However, this only happens when
> reading parquet files larger than 4096 bits!?
> Windows closes Python with exit code 255 and produces this:
>
> {code:java}
> Faulting application name: python.exe, version: 3.8.3150.1013, time stamp:
> 0x5ebc7702 Faulting module name: arrow.dll, version: 0.0.0.0, time stamp:
> 0x60060ce3 Exception code: 0xc000001d Fault offset: 0x000000000047aadc
> Faulting process id: 0x1b10 Faulting application start time:
> 0x01d6f4a43dca3c14 Faulting application path:
> D:\SvcFab\_App\SomeApp.FabricType_App32\SomeApp.Fabric.Executor.ProcessActorPkg.Code.1.0.218-prod\Python38\python.exe
> Faulting module path:
> D:\SvcFab\_App\SomeApp.FabricType_App32\temp\Executions\50cfffe8-9250-4ac7-8ba8-08d8c2bb3edf\.venv\lib\site-packages\pyarrow\arrow.dll{code}
>
> Tested on:
> ||OS||Xeon Platinum 8171m or 8272CL||Other CPUs||
> |Windows Server 2012 Data Center|Fail|OK|
> |Windows Server 2016 Data Center| OK|OK|
> |Windows Server 2019 Data Center| | |
> |Windows 10| |OK|
>
> Example code (Python):
> {code:java}
> import numpy as np
> import pandas as pd
> data_len = 2**5
> data = pd.DataFrame(
> {"values": np.arange(0., float(data_len), dtype=float)},
> index=np.arange(0, data_len, dtype=int)
> )
> data.to_parquet("test.parquet")
> data = pd.read_parquet("test.parquet", engine="pyarrow") # fails here!
> {code}
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