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According to [Numba docs](http://numba.pydata.org/numba-doc/latest/extending/high-level.html#implementing-functions) `@overload...` functions should return nothing (None) if it can not return function for given input types. All our current implementations of attributes, methods and functions in...

PokhodenkoSA

Correct way to document implementations of methods in new style

1

Actually `axis` could be a string (`'index'` or `'columns'`), not only an integer. You could add string type here. Moreover you could check on typing stage of the implementation that...

PokhodenkoSA

[Question] Can groupby agg scale in HPAT?

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Hi, I am trying to use HPAT to accelerate data science workloads, especially the ETL process. The data frame I am using contains 21,721,922 rows and 45 columns. All the...

bigwater

Return a DataFrame from HPAT Jited function

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Hi, I am trying to use HPAT to accelerate ETL process. Although HPAT gave significant speedup on a multi-core CPU in terms of the data frame transformation, it has an...

bigwater

HPAT unable to handle non-existent dataframe index name.

3

HPAT crashes if it gets a Pandas dataframe with non-existent dataframe index. Many users create ones without such indexes (as is shown in Pandas docs), so it would be useful...

triskadecaepyon

Does one need to (can?) redefine functions from other standard libraries?

1

As far as I understand, much of `pandas` is explicitly supported. Does it mean that other Intel goodies are not supported out of the box? I mean [these](https://software.intel.com/en-us/distribution-for-python/benchmarks?_ga=2.189696235.1962151668.1560418916-105511220.1560418916&elq_cid=3520085). Does it...

laszlosandor

informational

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Hi Ehsan, I noticed you included arrow in your build. I was wondering if HPAT's implementation is similar to Gandiva from Dremio. Though I believe the advantage of HPAT now...

JonathanChiang

MPIO is disabled due to address overflow issues even for small files (~0.5GB). Needs investigation.

ehsantn

Invalid result for HO function with bound instancemethod argument

4

Numba does partially support higher-order functions and local closures, but the boundaries are not clearly defined as well as the inlining effect on it. For HPAT, code below actually results...

quasilyte

daal4py warning

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If `daal4py` is installed, HPAT always gives this warning. ``` /homes/etotoni/python/hpat/hpat/ml/d4p.py:183: UserWarning: Warning: couldn't find numba type for 'data_management_DataCollectionPtr*'. Ignored. warnings.warn("Warning: couldn't find numba type for '" + x[1] +"'....

ehsantn