About Qulacs¶
Qulacs is a fast quantum circuit simulator for simulating large, noisy, or parametric quantum circuits.
Qulacs is licensed under the MIT license.
Feature¶
Fast quantum circuit simulation with parallelized C/C++ backend
Noisy quantum gate for simulation of NISQ devices
Parametric quantum gates for variational methods
Circuit compression for fast simulation
GPU support for fast simulation
Many utility functions for research
Performance¶
Compared following libraries on January, 2020
Package |
Version |
---|---|
0.1.9 |
|
0.6.0 |
|
0.3.4 |
|
0.4.2 |
|
Python interface of QuEST (PyQuest-cffi) |
3.0.0 |
Test environment:¶
Azure NC6s_v3 (6vcpu / Mem112GiB)
Intel(R) Xeon(R) CPU E5-2690 v4 @ 2.60GHz
Tesla V100 PCIE (driver 440.33.01)
What is Benchmarked¶
for each qubit number N:
Apply simultaneous random single-qubit Pauli-X rotation
and then repeat:
Apply CNOT(i,(i+1)%N) for all i in [0..N-1]
Apply simultaneous random single-qubit Pauli-X rotation
for N times.
Note that measured time include time for create quantum circuit.
Single thread benchmark¶
Requirement¶
C++ compiler (gcc or VisualStudio)
gcc/g++ >= 7.0.0 (checked in Linux, MacOS, cygwin, MinGW, and WSL)
Microsoft VisualStudio C++ 2015 or 2017
python 2.7 or 3.x
cmake >= 3.0
git
(option) CUDA >= 8.0
(option) AVX2 support
If your system supports AVX2 instructions, SIMD optimization is automatically enabled. If you want to enable GPU simulator, install qulacs through qulacs-gpu package or build from source.
Qulacs is tested on the following systems.
Ubuntu 16.04 / 18.04
MacOS X Sierra
Windows 10