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Add warning for JAX versions on import of Dynamics #232

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merged 10 commits into from
Jun 17, 2023
Merged

Add warning for JAX versions on import of Dynamics #232

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0dfe2c6
modifying JAX array-type registration to be more up to date, and incr…
DanPuzzuoli Jun 16, 2023
194f77a
formatting
DanPuzzuoli Jun 16, 2023
681fb90
adding warning message
DanPuzzuoli Jun 16, 2023
0c078f7
linting
DanPuzzuoli Jun 16, 2023
268fc62
changing doc env to use jax 0.4.3
DanPuzzuoli Jun 16, 2023
a483084
Merge branch 'main' into jax-warning
DanPuzzuoli Jun 16, 2023
9b4f195
setting jax version warning to only trigger if the version is between…
DanPuzzuoli Jun 16, 2023
2d6609f
formatting
DanPuzzuoli Jun 16, 2023
c128b52
adding environment setting for jax jitting in docs build
DanPuzzuoli Jun 16, 2023
983d310
removing DeviceArray from JAX types as it's no longer necessary
DanPuzzuoli Jun 17, 2023
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29 changes: 16 additions & 13 deletions qiskit_dynamics/dispatch/backends/jax.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,26 +17,29 @@

try:
import jax
from jax.interpreters.xla import DeviceArray
from jax import Array
from jax.core import Tracer
from jax.interpreters.ad import JVPTracer
from jax.interpreters.partial_eval import JaxprTracer

JAX_TYPES = (DeviceArray, Tracer, JaxprTracer, JVPTracer)
# warning based on JAX version
from packaging import version
import warnings

try:
# This class was introduced in 0.4.0
from jax import Array
if version.parse(jax.__version__) >= version.parse("0.4.4"):
warnings.warn(
"The functionality in the perturbation module of Qiskit Dynamics requires a JAX "
"version <= 0.4.6, due to a bug in JAX versions > 0.4.6. For versions 0.4.4, 0.4.5, "
"and 0.4.6, using the perturbation module functionality requires setting "
"os.environ['JAX_JIT_PJIT_API_MERGE'] = '0' before importing JAX."
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)

JAX_TYPES += (Array,)
except ImportError:
pass
JAX_TYPES = (Array, Tracer)

# in versions <= 0.4.10
try:
# This class is not in older versions of Jax
from jax.interpreters.partial_eval import DynamicJaxprTracer
# pylint: disable=ungrouped-imports
from jax.interpreters.xla import DeviceArray

JAX_TYPES += (DynamicJaxprTracer,)
JAX_TYPES += (DeviceArray,)
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except ImportError:
pass

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4 changes: 2 additions & 2 deletions setup.py
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Expand Up @@ -23,8 +23,8 @@
"multiset>=3.0.1",
]

jax_extras = ['jax>=0.2.26, <= 0.4.6',
'jaxlib>=0.1.75, <= 0.4.6']
jax_extras = ['jax>=0.4.0, <= 0.4.6',
'jaxlib>=0.4.0, <= 0.4.6']

PACKAGES = setuptools.find_packages(exclude=['test*'])

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4 changes: 2 additions & 2 deletions tox.ini
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Expand Up @@ -41,8 +41,8 @@ commands = black {posargs} qiskit_dynamics test
usedevelop = False
deps =
-r{toxinidir}/requirements-dev.txt
jax<=0.4.6
jaxlib<=0.4.6
jax<=0.4.3
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jaxlib<=0.4.3
diffrax
commands =
sphinx-build -j auto -b html -W {posargs} docs/ docs/_build/html
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