Guo P. Chen

The [TACO](http://tensor-compiler.org/) tensor compiler generates efficient dense, sparse, and block sparse kernels for various formats. It is worth checking out.

To use `dummy_spark`, you should do ```Python from dummy_spark import SparkContext ``` instead of ```Python from pyspark import SparkContext ``` If you import from `pyspark`, the `pyspark` package should have...

@hongzhouye I see. Are you using the original `DummyRDD` package or [the fork by Jinmo](https://github.com/tschijnmo/DummyRDD)?

@hongzhouye > Now comes my question: is this import meant to import from the original pystark package or some forked version from the authors of drudge? We use the origional...

> is it possible to specifically ask the optimize function to use Jinmo's dummy_spark as the backend (as that seems to work according to my successful run of the naïve...

The `DUMMY_SPARK` environment variable only affects the tests (check `conftest.py`). To use dummy_spark for a python script, just import `dummy_spark` instead of `pyspark`. I was under the impression that you...

The segfault may be caused by one of the C++ libraries (cpypp, fbitset, libparenth) used by gristmill. Those libraries were compiled when the Python setup script was run. @hongzhouye Which...

@hongzhouye Nothing obvious. Some debugging is needed. @tschijnmo @gauravharsha Any idea?