mattearllongshot

Cache miss occurs due to use of hash() in key

3

## Description of your problem or feature request In certain circumstances we end up having incorrect cache misses leading to extra storage / CPU usage. To reproduce, save the following...

Missing `c_code_cache_version` in `grad(sum(a), a)` graph

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## Description of your problem or feature request With this graph we do a compilation for each process that runs (storing it for the duration of the process), rather than...

See below. Notice that `abcd` becomes `a bcd` in the modified version. It seems sensitive to various things, eg. length of the identifier, line breaks. ## Python Code `~/junk/autopep8_bug.py` ```python...

Performance regression with `at.grad` and broadcasting

14

## Description of your problem or feature request With our production graph we're seeing `TensorFromScalar` taking up a non-trivial amount of time in 2.7.9. ``` Ops --- 25.4% 25.4% 0.575s...

BUG: Modules rebuilt after initial build (C backend)

3

### Describe the issue: In our production code we have a pytensor graph that has cache misses after an initial run with identical code. This causes process launches to be...