Fix wire label map

This release fixes a bug with the wire label map not having any entries. (Blame: @WrathfulSpatula, for not testing prior to release)

Full Changelog: v0.8.8...v0.9.0

sha1sum results:
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Catalyst v0.8 compatibility (and Qrack improvements)

This release builds against the Catalyst v0.8 header, for compatibility.

In Qrack and PyQrack, QBdt and BigInteger (alias bitCapInt) have been debugged. Additionally, one should see drastically improved performance with QBdt (despite significantly reduced parallelism utilization). Systemically, on GNU/Linux, the bitCapInt type now uses 128-bit "words" rather than 64-bit words, which should lead to some performance improvement.

Note that previous releases were almost universally built with capacity for 4095 qubits in a single simulator instance; in practicality, little besides stabilizer simulation can take advantage of the vast majority of this addressing capacity. This release limits to 127 qubits in a single simulator instance, but this is a "feasible" width for Qrack approximation techniques, and performance benefits from the change.

Full Changelog:
unitaryfund/qrack@vm6502q.v9.9.28...vm6502q.v9.9.33
unitaryfund/pyqrack@v1.30.22...v1.30.23
v0.8.7...v0.8.8

sha1sum results:
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e84a0937323c67a5590d7596a94b569335a173c1 pennylane_qrack-0.8.8.tar.gz

Stable maintenance release of Qrack (debugging and style)

The past couple of months have seen almost exclusively style and debugging changes in Qrack. (We experimented with fixed-point math for certain applications, but it was only suitable on GNU/Linux, and the experiments mostly proved we are better leaving out fixed-point for now.) This release compared the current head of main branch to the state of Qrack about 2 months ago and whittled down the diff to a small and trustworthy set of bug fixes and adjustments according to style guide.

This release might constitute a relatively "complete" state of the core Qrack project, for a significant amount of time into the future. (Most future development is likely to focus on building out support for other quantum software frameworks.)

Happy Qracking! You rock!

Full Changelog:
v0.8.6...v0.8.7
unitaryfund/pyqrack@v1.30.20...v1.30.22
unitaryfund/qrack@vm6502q.v9.9.23...vm6502q.v9.9.28

sha1sum results:
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71fdfeb4b0f438a6e655cede67fbd2fc92bf93f3 pennylane_qrack-0.8.7.tar.gz

QBdt debugging

QBdt error amortization suffered from an out-of-precision bug; this has been (completely) fixed.

Full Changelog:
unitaryfund/qrack@vm6502q.v9.9.22...vm6502q.v9.9.23
unitaryfund/pyqrack@v1.30.16...v1.30.20
v0.8.5...v0.8.6

sha1sum results:
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c784ba9d1b0752a6e2972a56cdbda9abbc077c29 pennylane_qrack-0.8.6.tar.gz

OpenCL kernel (and other) optimizations; Ubuntu PowerPC fix

Various micro-optimizations have been added, including OpenCL kernel optimizations. Because of OpenCL kernel updates, perform the following commands as necessary in the qrack repository directory:

$ make clean
$ cmake ..
$ ./qrack_cl_precompile

Full Changelog:
unitaryfund/qrack@vm6502q.v9.9.13...vm6502q.v9.9.22
v0.8.4...v0.8.5

sha1sum results:
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QUnitStateVector and QEngineOCL debugging

A new class QUnitStateVector can hold Schmidt-decomposed representation of state vectors. For now, specifically, it is used only for near-Clifford simulation with QUnitClifford.

A long-standing edge case in QEngineOCL::MAll() has also been fixed.

Full Changelog:
unitaryfund/qrack@vm6502q.v9.9.9...vm6502q.v9.9.13
v0.8.2...v0.8.4

sha1sum results:
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Random number generation improvements

Minor improvements have been made to Qrack's random number generator API. Most importantly, 32 divisions have been replaced with 32 multiplications when generating a random float with Rand(). Another possible point of improvement is that most-significant bit of the raw random bit stream now corresponds with most-significant bit of Rand(), where some devices and services for random number generation will tend to prioritize most-significant bit as slightly less biased for randomness than least-significant.

Full Changelog: unitaryfund/qrack@vm6502q.v9.9.8...vm6502q.v9.9.9

sha1sum results:
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834cd6595105ceda7adcd09a2b47ae0af51c0a21 pennylane_qrack-0.8.2.tar.gz

State vector observable (2)

The previous release was yanked from PyPi due to problems running the tutorial locally. The issue turned out to be with the local installation of Catalyst, but not the plugin. This is a re-release of v0.8.0, plus the new QUnit refactoring release in Qrack.

sha1sum results:
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fdd9509024e38a169f0206808e1deeb9e6425a51 pennylane_qrack-0.8.1.tar.gz

Full Changelog: v0.8.0...v0.8.1

State vector observable

By mistake, state vector outputs were omitted from the *.toml, even though the implementation would support them. This release simply updates the *.toml to enable state vector outputs.

What's Changed

• Added state to the list of supported measurements in device config. by @mehrdad2m in #22
• Fix tutorial thumbnail image in docs by @josh146 in #21

New Contributors

• @mehrdad2m made their first contribution in #22
• @josh146 made their first contribution in #21

Full Changelog: v0.7.3...v0.8.0

sha1sum results:
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Debug multi-GPU Clifford+RZ environment variable

This release fixes a bug that prevented custom tuning of the maximum ancillary qubit count in QStabilizerHybrid via QRACK_MAX_PAGING_QB. (This mostly affects cases of multi-GPU simulation with near-Clifford optimization, only.)

Full Changelog: v0.7.2...v0.7.3

NOTE: This release has been updated, only because it was originally packaged incorrectly as v0.7.2 instead of v0.7.3. The hashes have changed, as a result.

sha1sum results:
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