Co-authored-by: Jake Lishman <jake.lishman@ibm.com>
Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

* Only install numpy and scipy from wheels in build jobs

With recent changes to the upstream numpy and scipy packaging our CI
build jobs are spending most of their time build numpy and/or scipy from
source to test the built wheels function correctly. This is unecessary
as there are compatible wheels available on pypi. To correct this issue
this commit updates the cibuildwheel config used in the wheel build jobs
(both for ci and release artifacts) to only use binary wheels for numpy
and scipy before testing.

* Use manylinux 2014 for py310 wheel builds

In the previous commit we switched to the test configuration to install
numpy and scipy only from binary pre-compiled wheel packages. However,
for scipy and numpy starting in Python 3.10 they only package for
manylinux2014 while for aer we were still using manylinux2010 for all
the builds. To enable building on python 3.10 we need to use
manylinux2014, but for compatibility we still need to use manylinux2010.
This commit makes this change so for python 3.6-3.9 we build on
manylinux2010 and for python 3.10 we build on manylinux 2014.

To facilitate this change the configuration for cibuildwheel is changed
to leverage the pyproject.toml to set the configuration for cibuildwheel
instead of using separate environment variables. This centralizes the
configuration and makes it easier to work with.

* Bump cibuildwheel version

The pyproject.toml based configuration didn't support overrides (which
was leveraged in the previous commit to use a different image for py310)
until v2.2.0 and we were previously using a version older than that.
This commit bumps the cibuildwheel version to the 2.2.x release to
enable the use of this option.

* Use manylinux2010 for all i686 builds

The i686 py310 job was failing because centos7 (which manylinux2014 is
based off of) doesn't have openblas packaged for i686. We orignally
switched both the x86_64 and i686 py310 jobs to use manylinux2014
because numpy and scipy made python 3.10 manylinux2014 and only publish
manylinux2014 wheels. However, numpy/scipy don't support i686 on py310
and we already skip test installs for py310. So regardless we have to
build numpy from source to build aer. So using manylinux2010 which is
centos6 based will enable us to at least build because there is an
openblas package available.

* stop installing stop installing qiskit-terra from source

This changes installation of qiskit-terra in tox.
Recent commit of Qiskit#1448 changed installation of qiskit-terra to use pypi in most CI workflow, but not tox.

* reduce explicit installation of qiskit-terra in tox.ini

Co-authored-by: Jake Lishman <jake.lishman@ibm.com>

* Drop support for Python 3.6

Now that Qiskit Aer 0.10.0 has been released that Qiskit no longer
supports python 3.6 (in the lead up to adding support for python 3.10).
This commit officially drops the support for python 3.6 and makes python
3.7 required to install qiskit-aer. It also removes all the ci jobs
still using 3.6 both for testing and building wheels.

* Add release note

* Fix syntax error in job configuration

* Update releasenotes/notes/drop-python36-61553302523fa240.yaml

Co-authored-by: Jake Lishman <jake@binhbar.com>

* Unify cibuildwheel configuration to pyproject.toml

This commit removes all the environment variable usage for default
configuration of cibuildwheel and switches to use the pyproject.toml to
centralize the configuration for all the jobs. Environment variables are
still used for per job custom overrides which don't really fit in the
configuration of the pyproject.toml (mainly cross-build overrides and
GPU configuration).

* Fix toml inline table syntax error

* Add musllinux wheels to skip list too

Newer versions of cibuildwheel support building musllinux wheels for
musl libc based linux distros, such as alpine linux, in addition to
manylinux wheels (which are not compatible with musl libc based
linux distros and only work with glibc distros). The musllinux build
environments are different and not centos based so builds fail in them.
Since we're not supporting musl platforms in qiskit-aer we don't need to
attempt to build wheels for that platform. This commit adds musllinux
builds to the skip list in the common cibuildwheel configuration
accordingly.

Co-authored-by: Jake Lishman <jake@binhbar.com>
Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

* Add cuStateVec support

Added support for cuQuantum, NVIDIA's APIs for quantum computing,
to accelerate statevector, density matrix and unitary simulators by using GPUs.

To include cuQuantum, custom build of Aer is necessary by setting path of
cuQuantum library to CUSTATEVEC_ROOT (Binary distribution will be after
official release of cuQuantum, which is now Beta 2 (0.1.0).

cuStateVector of cuQuantum is enabled by setting device='GPU' and 
cuStateVec_threshold options. cuStateVec is enabled when number of
qubits of input circuit is equal or greater than cuStateVec_threshold.

Since cuQuantum is beta version, there are some limitations:
- cuStateVec is not thread safe, multi-chunk parallelization (cache blocking) is done by single thread (slow)
- Multi-shots parallelization is disabled (single thread, slow)
- Multi-shots batched optimization is not support for cuStateVec

Co-authored-by: Christopher J. Wood <cjwood@us.ibm.com>
Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

The constraint on `jupyter_sphinx` was originally added when Python 3.8
had only just come out, because at the time there were no wheels
available for it on Windows, or they were broken.  That is no longer the
case, so now all this constraint was doing was preventing a successful
documentation build on anything other than Python 3.7.

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>
Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

This flag enables several unsafe floating-point transformations that are
not generally appropriate for a distributed mathematical library.  Most
importantly, however, `-ffast-math` on `gcc` also forcibly enables the
floating-point "flush to zero" mode for subnormal numbers when the
dynamic library is loaded, which affects not just Qiskit Aer, but every
other floating-point operation in the running process.  This is not our
decision to make for users, and it shouldn't be distributed.

The aer gpu package wheel job for python 3.10 builds in the manylinux2014
container image, while for the older Python versions it uses the
manylinux2010 image. The manylinux2014 image is based on Centos 7 while
the manylinux2010 image is based on Centos 6. During the qiskit-aer
0.10.3 release the gpu wheel job failed because when running the py3.10
build we installed the cuda package for centos 6 in the manylinux2014
centos 7 based image. This caused the job to fail when nvcc was called
because it was not installed properly. To fix this issue the Python 3.10
build is split out into a separate job. This separate job will install
the same cuda version but for centos 7 which is appropriate for the
manylinux2014 image.

…iskit#1446)

* Use unitary equivalence instead of circuit equality in noise tests

Recent qiskit-terra reduces I gates and some tests of Aer failed in equality checks of QuantumCircuit injected as noise.
This PR change a way of equality check from object equality to unitary equivalence of QuantumCircuit.

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>
Co-authored-by: Hiroshi Horii <horii@jp.ibm.com>

Aer has not used Cython at all since late 2020 (see Qiskit#1014), and there
were still a few minor comment references to it in the code.  This also
removes two CMake files that were used during the Cython build process,
but are no longer needed, except for a trivial variable that was only
used in `FindPybind11.cmake`, and is now calculated there.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

Until 0.8.2,Qiskit-Aer sets options for fusion depending on a method, such as statevector and density_matrix.
However, since AerSimulator introduced in 0.9.0, their default values were fixed for all the methods.
Because density matrix and unitary methods use 2^n times larger memory than statevector does,
performance regressions were happened since 0.9.0.

This commit sets default values for fusion fusion_max_qubit and fusion_threshold based on a method as follows:

    +--------------------------+----------------------+----------------------+
    | Method                   | ``fusion_max_qubit`` | ``fusion_threshold`` |
    +==========================+======================+======================+
    | ``statevector``          | 5                    | 14                   |
    +--------------------------+----------------------+----------------------+
    | ``density_matrix``       | 2                    | 7                    |
    +--------------------------+----------------------+----------------------+
    | ``unitary``              | 5                    | 7                    |
    +--------------------------+----------------------+----------------------+
    | ``superop``              | 2                    | 7                    |
    +--------------------------+----------------------+----------------------+
    | other methods            | 5                    | 14                   |
    +--------------------------+----------------------+----------------------+

Co-authored-by: Jake Lishman <jake.lishman@ibm.com>

…#1467)

* Change not to fail to run noisy simulation with T2 > 2 * T1

Previously NoiseModel.from_backend failed when T2 value is greater than 2 * T1,
however, sometimes backend returns such T2 value. 
This change truncates T2 value up to 2 * T1 with issuing a user warning. 

Co-authored-by: Hiroshi Horii <horii@jp.ibm.com>

* Enable multi-chunk parallelization in MPI environment

Previously multi-chunk parallelization was not enabled in MPI environment.
Therefore, shots were not simulated in parallel with multi-GPUs in distributed nodes.
With this change, multiple-GPUs can perform multi-shots simulation in parallel
and then provide performance improvement for noise and intermediate-measurement
simulation in distributed environment.

…#1480)

* Enable cacheblocking of superop operations and fix a bug in measurement with multi-chunks

Previously, superop was not recognized in transplation of cacheblocking and then it was not correctly handled in
multi-gpu environment and hybrid environment with gpu and cpu.
This change enhance cacheblocking for superop and then make density matrix simulation with GPU(s) correctly.
In addition, a measurement issue with cacheblocking was also fixed.

The 3.1 release of Jinja breaks some part of the Sphinx/nbsphinx
pipeline, causing tutorial jobs to fail.  The jinja2 developers consider
this a Sphinx bug, so we need to pin Jinja until a new version of Sphinx
or the nbsphinx extension is released to fix the issue.

* Fix for specification change of cuStateVec APIs

cuQuantum 0.40 changed cuStateVec APIs and this commit is to catch up this change.
Aer supports only APIs of the latest cuQuantum and does not previous versions.
In addition, since memory pool is introduced for cuStateVec, this change enables this function.
Memory pool provides performance for low-qubit simulation.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

* Improve performance of batched noise simulation based on probabilistic mixture of paulis

This improves performance of noise simulation on GPU(s) for small qubits with statevector method
and noise based on probabilistic mixture of paulis. Before such noise simulation, Aer batched
some shots as a unit of work in GPUs. For each shot, noise model injects some pauli gates.
Previously, this sampling was performed by a single thread and this change parallelize the sampling.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

* Add a size of required memory in an error message

Previously there is no way to know required memory to simulate a circuit when simulation fails
due to shortage of memory. This change adds required memory and available max memory in
a message of error state.

The to_json() method  is called for each circuit header.
A header may include metadata and metadata can be a python object.
This PR changes serialization of circuit headers to use py::handle without serializing to a json.

Fixes Qiskit#1435


* use python parser for circuit.header

* support metadata copy with parameterization

* avoid serialization of circuit metadata

* use circuit_index to specify metadata

* remove metadata from qobj for Aer to simulate circuits

* add release note

* clear circuite metadata correctly.

* take unnecessary tests for circuit metadata backup/recovery

* work around metadata serialization issue within _run method

* Update releasenotes/notes/remove_circuit_metadata_from_qobj-324e7ea9b369ee67.yaml

Starting with the recently released qiskit-terra 0.20.0 qiskit only
builds packages on manylinux2014 now. This commit update the wheel jobs
for Aer to install the rust compiler and build terra from source when CI uses 
manylinux2010 for i686 builds.
In manylinux2014 for i686, binary of OpenBLAS is not available and its installation
from source codes is necessary. Installation of rust compiler and terra is a
lot less effort than compiling OpenBLAS.
See the details in Qiskit#1498.

* Thread control for Thrust CPU is now same as device=CPU

This commit also includes Qiskit#1497, which fix performance issue in device=Thrust.
A cause of this issue is that Thrust CPU always applied OpenMP for threading
kernel programs without referring to the number of qubits.
This fix applies OpenMP referring to statevector_parallel_threshold parameter
as same as device=CPU.
See the details in Qiskit#1497.

Co-authored-by: Jun Doi <doichan@jp.ibm.com>

The BaseBackend class in qiskit-terra (along with the rest of the legacy
provider interface) is deprecated and being removed soon in
Qiskit/qiskit#7886. To avoid potential compatibility issues or
deprecation warnings we shouldn't be using this class anymore. This
commit removes the last 2 uses of these legacy classes to avoid issues
moving forward.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

BaseContainer::stream_ is of type cudaStream_t (opaque pointer), cannot be used as an array.
This commit fixes this issue. See the detail in Qiskit#1502.

Currently NoiseModel.from_dict() does not support pauli gate though some backends
returns noise models with it. Therefore, if a returned NoiseModel was transformed to dict with
NoiseModel.to_dict(), from_dict() may fail. This commit fixes this issues by supporting
pauli gate in from_dict(). See the detail in Qiskit#1505 and
Qiskit#1510.

…kit#1508)

* fix a bug in multiplexer

* add multiplexer tests

* make unitary op if multiplexer does not have control qubits

* Addressing default branch naming change

* Update CODE_OF_CONDUCT.md

Updating Code of conduct to match original format

* Correcting qiskit project default branch naming

…ed on the seed of the first circuit (Qiskit#1512)

Currently, a circuit is copied for each parameter set, including seed_simulator
(if seed_simulator is specified as a run option, different seeds are set to circuits). 
Also, if backend.run() simulates multiple circuits without seed_simulator, a seed of 
each circuit is randomly generated and make users to reproduce simulation difficult.
This PR sets seeds deterministically based on the seed of the first circuit in
multi-circuit simulation. 

Co-authored-by: Jake Lishman <jake.lishman@ibm.com>

* Add mergify configuration

This adds a configuration similar to what already exists on Terra that
causes the mergify bot to handle merging automatically on our behalf, if
a PR passes all its status checks and has the `automerge` label applied.
Procedure on Aer has usually been to group stable backports rather than
doing them one at a time, so this configuration does not add a backport
rule (unlike Terra's version).

GitHub Actions (what Aer uses for CI) tests appear as separate status
check entries, so we have to manually specify all of these to get the
desired behaviour.

* Simplify configuration rules

…kit#1513)

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

MPI backend transpiles a circuit with gates for local qubits and swap for remote qubits.
Simulating swap for remote qubits produces MPI communications between nodes.
This commit optimizes MPI communication by fusing such swap gates.
New parameters (multi_chunk_swap_enable, chunk_swap_buffer_qubits, and max_multi_swap)
control how fuse swap gates in MPI backend.

* Implement multiple chunk swaps
* multi swap for density matrix
* Fix matrix/parameter buffer for ThrustCPU
* fix uninitialized i
* add multi-swaps parameters to metadata
Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

This change replaces quantum_info.operators.pauli.Pauli with quantum_info.operators.Pauli because the former was deprecated.

* inline a circuit to initialize statevector

* Use _append() to add instructions in initialization.
Fixed a test case for initialization with label
Added a release note for support of initialization with label.
Update qiskit/providers/aer/backends/aer_compiler.py

Co-authored-by: Jake Lishman <jake@binhbar.com>

Co-authored-by: Jake Lishman <jake@binhbar.com>

A bug in cuQuantum was fixed and Aer starts calling cuQuantum in omp threads.

* turn on omp thread parallel for cuStateVec
* remove pre initialization of cuStateVec

In CI system, cached native libraries of conan were sometimes built on macOSX 11 though 10.9 is necessary for build of Aer.
This commit allows CI to build only OpenMP from sources of conan by setting `AER_CMAKE_OPENMP_BUILD`.

…ples. (Qiskit#1535)

* Removing usage of U1Gate from parallel processing examples.

* Adding release note.

* Updating release note with correct class annotation.

* Remove documentation-only release note

Co-authored-by: Jake Lishman <jake.lishman@ibm.com>
Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

…es (Qiskit#1529)

This commits allow any multi-control gates in GPU execution if a number of target qubits are within a block.

* blocking only target qubits for control gates
* Fix for GPU+CPU hybrid mode
* add metadata for multi-shots without batch optimization
Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

In Qiskit/qiskit-tutorials#1337 the theme used for the sphinx builds of
the tutorials changed to use the qiskit theme package. This is breaking
CI because we didn't have the package installed. This commit fixes this
failure by swapping out the theme package.

…aer (Qiskit#1538)

* fix issues from mismatch of binding specs in assemble and backend of aer

* generate qobj for each circuit and combine the all in aerbackend

* Add qiskit-neko integration test job

This commit adds a new CI job to run the Qiskit Neko test suite. Qiskit
Neko is an integration suite that's designed to validate backwards
compatibility for end user workflows and between different components in
Qiskit. This test job will hopefully eventually replace the role that
the tutorials CI job is playing for backwards compatibility testing.
Right now the test suite is still fairly small but it covers some
examples of terra, aer, experiments, nature, and machine learning. The
test suite will continue to grow and improve our coverage for testing.

This test job will install qiskit-neko and aer from main, while
the other qiskit components (nature, aer, machine learning, and
experiments) will be installed from release. This will enable us to
check that a proposed PR does not regress compatibility on an API or an
integration point with another qiskit project and ensure that
aer doesn't break CI for another project using neko.

* Fix selection regex

* Update .github/workflows/neko.yml

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Since Sphinx 5, `language = None` is a warning that defaults to "en".

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

https://peps.python.org/pep-0632/

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

* Remove deprecated use of qiskit.test.mock

Terra 0.21 triggers deprecation warnings for `qiskit.test.mock`, in
favour of `qiskit.providers.fake_provider`, which has been available
since Terra 0.20.  The only uses are in the tests, but it still
technically requires a version bump in the Terra requirement.  It's
fairly likely something else will bump the Terra version further before
release of Aer 0.11.

* Flatten unnecessarily nested import

This is also necessary because the submodule structure of
`qiskit.providers.fake_provider` is not guaranteed to be a public
interface, especially in Terra 0.20.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

* Add support for BackendV2 in NoiseModel.from_backend

* Fix lint and doc

* Apply suggestions from code review

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

* Raise pending deprecation warnings

* Fix a bug in unit conversion

* Bump the minimum qiskit-terra version to 0.20.0

* Make properties optional

* Fix filterwarnings

* Add test with FakeLagosV2

* Fix a bug in the case inst prop is None

* Add reno

* Apply suggestions from code review

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

* Take care the case of no prop dict for measure

* Replace test.mock with providers.fake_provider

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>
Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

* Add cross-build wheel jobs for ppc64le and s390x

This commit adds a new CI job at release time to build precompiled
binaries for s390x and ppc64le linux platforms.  These platforms do not
have precompiled wheels for any upstream dependencies (except for
retworkx and tweedledum, which both publish binaries for both platforms).
Since the only publically available CI service that has native s390x and
ppc64le environments available is travis which doesn't provide
sufficient quota to open source projects anymore to make it usable we
have to rely on either cross compilation or emulation. Cross compiling
with python wheels while possible is quite tricky to setup and configure
in practice so emulation is used here. This is a much simpler path to
configure, especially because cibuildwheel has support for emulating
non-x86 architectures via QEMU to build wheels. While QEMU emulation of
other architectures is exceedingly slow, we have a 6 hour job time limit
with github actions which should hopefully be sufficient to compile the
binary and build wheels for all our supported python versions.

However, because this is so slow we don't have a sufficient time budget
for compiling anything but qiskit-aer. To test the wheels we'd have to
build most (not qiskit-terra or retworkx) dependencies from source and
many are slow to build under emulation. Scipy alone could take our
entire time budget. So to avoid this issue this commit skips the tests
and solely builds the wheels. This also means installing scipy and other
dependencies is still an exercise for the s390x and ppc64le users. But,
if this works it will mean that at least for Qiskit there will not be a
need to compile anything from source.

* DNM: test wheel builds in Ci

* Install epel for openblas

* Revert "DNM: test wheel builds in Ci"

This reverts commit 03addfc.

* Add release note

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

Fixes Qiskit#1558

This commit adds Aer implementation of Sampler and Estimator in Qiskit Primitives.
See the docs https://qiskit.org/documentation/apidoc/primitives.html for general descriptions.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>
Co-authored-by: dlasecki <dal@zurich.ibm.com>

Each MPI process had different seed numbers when seed_simulator is not set.
This resolved this issue by synchronizing a seed in all MPI processes.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

Avoid call of bind_circuits() if parameters are empty lists.

* avoid using inversed isometry gate for multiplexer test

* Update test/terra/reference/ref_multiplexer.py

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

…it#1569)

* Fix for save_statevector and fix for global indexing for Trust

* fix gate naming for control qubits blocking

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

The temp double array of size 4 needed for _mm256_load_pd should be allocated with posix_memalign on Linux platforms. It is accidentally wrapped within _OPENMP switch, hence causing the default malloc to be used in all cases. This commit corrects _OPENMP and fixes the bug.

Signed-off-by: Thien Nguyen <thien.md.nguyen@gmail.com>

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

FreeBSD has CMAKE_HOST_SYSTEM_PROCESSOR=amd64.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

Recent releases of Terra and Aer are not synchronized and Terra-0.22 will be released before Aer-0.12 will be released.
Primitives in Terra 0.22 have new feature run method. Qiskit/qiskit#8382.
This PR makes Aer 0.11 compatible with both Terra 0.21 and 0.22.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

Namespace packages are constant source of problems for users. The python
packaging ecosystem around splitting packages across namespaces is
fragile at the best of times and can often leave a you with an
environment that isn't recoverable (especially when mixing install
methods). There is also a performance hit whenever there is a piece of
the namespace we allow external packages to extend since it requires
doing a full python path search which can be slow depending on the
backing I/O and the number of paths in sys.path for an environment. This
commit addresses the piece from the aer perspective by moving
qiskit.providers.aer to it's own package and namespace 'qiskit_aer'.

Co-authored-by: Hiroshi Horii <horii@jp.ibm.com>

* initial input of aer runtime

* support methods and refactor state classes

* add AerStatevector that inherits quantum_info.states.Statevector

* fix pylint errors

* set default parallelization and expose last execution result

* test mps

* fix configure issue

* cast to correct type of configuration

* call set_max_matrix_qubits in AerState

* support AerStatevector.evolve

* resolve segfault and bugs in state_chunk

* add chunk distribution support

* support ndarray initialization for AerStatevector

* take python parts

* take a remaining python part

* add runtime library test

* add release note

* Correctly run test in CI

* add apache header to adding files

* take duplicated private

Co-authored-by: Jun Doi <doichan@jp.ibm.com>

* Qiskit#1584

* fix lint

* add a test

* fix bug

* remove unnecessary change

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

* Add release note for namespace migration

In the recently merged Qiskit#1526 we moved the qiskit-aer package to move
it's python namespace from qiskit.providers.aer to qiskit_aer. However,
in that PR a release note was missing. This commit adds the missing
release note to document the upgrade implications about the change. We
should also mention this in the release notes prelude section, but that
will occur in the release PR.

* Apply suggestions from code review

Co-authored-by: Jake Lishman <jake@binhbar.com>

Co-authored-by: Jake Lishman <jake@binhbar.com>

* remove snapshot instruction from python

* remove snapshot instructions from docs

* add upgrade release note

* Name specific instructions

* Mention removal of qiskit_aer.extensions

Co-authored-by: Jake Lishman <jake.lishman@ibm.com>

…it#1586)

* initial input of aer runtime

* support methods and refactor state classes

* add AerStatevector that inherits quantum_info.states.Statevector

* fix pylint errors

* set default parallelization and expose last execution result

* test mps

* fix configure issue

* cast to correct type of configuration

* call set_max_matrix_qubits in AerState

* support AerStatevector.evolve

* resolve segfault and bugs in state_chunk

* add chunk distribution support

* support ndarray initialization for AerStatevector

* take python parts

* take a remaining python part

* add runtime library test

* add release note

* Correctly run test in CI

* add AerState

* change tests to align with qiskit_aer

* add init files for quantum_info

* fix lint errors

* add apply_global_phase

* take a release note. use explicit state management. revert memory mapping from ndarray.

* allow configure in intialization

* refactor state classes by deleting unused methods. enabled mapping only for statevector

* fix lint error

* support copy of qubitvector

* add move assignement operator to qubitvector

* fix bug in sampling

* Update qiskit_aer/quantum_info/__init__.py

Co-authored-by: Jake Lishman <jake@binhbar.com>

* correct test cases and modified comments for AerState

Co-authored-by: Jun Doi <doichan@jp.ibm.com>
Co-authored-by: Jake Lishman <jake@binhbar.com>

This reverts commit 788e2c3.

Add a new class AerStatevector that supports q.i.s.Statevector interface.
This class uses an internal class AerState that directly access to Aer's
native runtime.

This adds the Terra control-flow instructions to the custom instructions
lists for the simulator methods that support them.  This is likely to be
a temporary measure; as classical-processing descriptions are expanded
in Terra, this method of describing them feels like it will become
unworkable, but for now, this is sufficient to allow
`qiskit.transpile(qc, AerSimulator(...))` to work as expected when there
is control flow.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

* Prepare 0.11.0 release

This commit prepares for the 0.11.0 release. It moves the release notes
to a self contained directory for the release and updates the wording
and details of the release notes. Once this commit merges it should be
the tagged commit for the release.

* Apply suggestions from code review

Co-authored-by: Jake Lishman <jake@binhbar.com>

Co-authored-by: Jake Lishman <jake@binhbar.com>

…#1603)

* add gpu build test and enable gcc-9 for gpu builds

* use manylinux2010

* run scl devtoolset-9 and revert CIBW_SKIP in the last commit

* do not run scl

* install rust compiler for gpu build

* install rust manually

* install terra explicitly

* install rust manually (again)

* skip CI build test

* skip tests only cp37

* take gpu builds from CI test workflow and skip CIBW_TEST in CI deploy workflow for gpu builds

)

The qiskit-aer release notes for 0.11 say that the release moves
away from `qiskit.providers.aer`.  However, some of the other
release notes for this release actually use this soon-to-be-
deprecated import location, including one that is displayed
before the one about the new namespace.  This fixes that
awkwardness by using `qiskit_aer` uniformly throughout the
0.11 release notes.

* Fix handling of instructions with clbits in LocalNoisePass

* Add release note

* Pin terra==0.21.2 temporarily

This PR is to support Primitives of Terra 0.22, which requires _run() for Sampler and Estimator.

* Primitives support run method in Terra 0.22
* add options and keys
* fix typo
* add deprecated decorator and deprecation
* fix decorator
* fix decorator
* fix bugs
* fix tests
* fix tests
* rm unnecessary files
* add tests
* fix tests
* unpin terra version

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

* Fix typo

* Construct AerStatevector from Statevector.data

* Fix a lint error

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

Since we're moving to remove Qiskit Aer from the metapackage, we should
update our documentation to reflect that as well.

Adds cache of transpiled circuits into Sampler to resolve an issue: Qiskit#1594.
All the transpiled circuits are cached in a Sampler and reused for 2nd or later uses.

Co-authored-by: Julien Gacon <gaconju@gmail.com>
Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

Qiskit#1628)

* add release note for 1598 that supports Primitive of Terra 0.2

* make release note from feature to fixes

* Update releasenotes/notes/support_terra_primitive_022-8852b784608bcdcb.yaml

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

snapshot instructions were removed from python codes in 0.11. 
This commit removes snapshot instructions from cpp codes because
they will not be called.

* reduce snapshot from cpp sources
* reduce snapshot words from comments

…it#1634)

Fix a bug in AerState, which is used in AerStatevector. In simulation with multiple GPUs,
cache blocking transpilation changes qubit mapping. This mapping was not managed in
AerState and corrected with this commit.

* fix cacheblocking to restore qubit map for AerState
* Update a release note to write more detail.

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

…model from backend (Qiskit#1639)

This commit removes warnings about a noise model from a backend to report un-physical device parameters (such as T2 > 2*T1 due to statistical errors in their estimation). These warnings are not actionable (so useless) for users in the sense that there are no means other than truncating them to the theoretical bounds as done within noise.device module.

* Fix 1631 by removing warnings on parameter truncations
* Add release note
* Remove one more case printing useless warnings

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

With this commit, Aer allocates 80% of free memory of GPU and rest of chunks are allocated on CPU memory because some free space is necessary for Thrust. In addition, this commit includes another fix that correct maximum matrix size for noise sampling.

* Fix for GPU simulator, memory allocation
* fix calculating required memory size, reserve 512MB of memory for Thrust
* remove debug codes

* Add support for Python 3.11

Python 3.11.0 was released on 10-24-2022, this commit marks the
start of support for Python 3.11 in qiskit. It adds the supported
Python version in the package metadata and updates the CI
configuration to run test jobs on Python 3.11 and build Python
3.11 wheels on release.

* Use manylinux2014 for i686 builds

* install openblas manually

* add cp311-manylinux to the overrides for i686 in pyproject.toml

* Try omitting target for a generic i686 OpenBLAS build

* Set target to pentium 3 for minimum supported ISA level

* Exclude cvxpy on window 3.11 tests

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>
Co-authored-by: Hiroshi Horii <horii@jp.ibm.com>

* Fix data-flow analysis in control-flow jump/mark

During the inlining of control-flow into jump/mark instructions, the
data-flow graph was losing information.  The tree-like form within
`QuantumCircuit` implicitly creates a basic-block structure, which
groups the whole control-flow body into a single block that must be
executed atomicly (as seen by the outer circuit).  When inlining the
body, this is no longer the case, and we have to take more care to
ensure that topological iteration through the data-flow graph does not
accidentally move jump/mark instructions into incorrect places, nor
allow unrelated instructions to appear between jump/mark pairs if they
were no originally in that control-flow block.

There are two components here; the former is solved by ensuring the
jump/mark instructions span the full data width including clbits, and
the latter is solved by placing full circuit width barriers around each
control-flow logical component.

* Fix lint

Behavior of Aer Sampler was different from of Terra Sampler as qiskit-terra#9178 points.
Especially, `aer_job.result().quasi_dists[0].binary_probabilities()` did not return correct
bitstring length. This commit fixes this issue and now results of `Sampler` of Aer and
Terra are consistent.

* use appropriate num qubits for counts
* fix for shots is None
* fix lint
* add test
* add reno
* fix test

Co-authored-by: Takashi Imamichi <imamichi@jp.ibm.com>
Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>

This commit allows construct of `AerStatevector` directly from Terra's `Statevector`.

* Support for initialization from Statevector
* Add release note
* Initialize with AerStatevector prior to Statevector
* add a test to initialize with AerStatevector

Co-authored-by: Hiroshi Horii <hhorii@users.noreply.github.com>