add Cirq backend

.github/workflows/ci.yml

@@ -55,6 +55,14 @@ jobs:
           POSTGRES_PASSWORD: postgres
       - run: lerna bootstrap
       - run: yarn build
+      - name: javascript:build
+        run: |-
+          cd apps/www
+          bundle exec rails javascript:build
+      - name: css:build
+        run: |-
+          cd apps/www
+          bundle exec rails css:build
       - run: yarn test:ci
         env:
           RAILS_ENV: test

Dockerfile_cirq_backend

@@ -0,0 +1,106 @@
+# 1. The Qniapp is built as follows:
+#   $ git clone https://github.com/qniapp/qni.git
+#   $ cd qni
+#   $ git fetch origin cirq-backend
+#   $ git checkout cirq-backend
+#   $ docker build -f Dockerfile_cirq_backend . -t qni_cirq_backend
+# 2. Then run by:
+#   $ docker run -p 3000:3000 --gpus all --rm -it qni_cirq_backend
+# 3. access http://127.0.0.1:3000 in your browser
+
+# Troubleshooting
+#   If the port 3000 is already used, change 3000 to 4000 (for example)
+#    $ docker run -p 4000:3000 --gpus all --rm -it qni_cirq_backend
+#   and access http://127.0.0.1:4000 in your browser
+
+FROM nvidia/cuda:11.5.1-devel-ubuntu20.04
+
+RUN apt update
+RUN apt -y upgrade
+RUN apt install -y sudo
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt install -y tzdata
+# set your timezone
+ENV TZ Asia/Tokyo
+RUN echo "${TZ}" > /etc/timezone \
+  && rm /etc/localtime \
+  && ln -s /usr/share/zoneinfo/Asia/Tokyo /etc/localtime \
+  && dpkg-reconfigure -f noninteractive tzdata
+
+RUN apt install -y build-essential
+RUN apt install -y git wget time curl libssl-dev zlib1g-dev libpq-dev
+RUN apt install -y redis-server
+RUN apt install -y ng-common ng-cjk emacs-nox
+RUN apt install -y postgresql postgresql-contrib
+
+## cuda
+RUN apt -y install cuda-drivers
+RUN wget https://developer.download.nvidia.com/compute/cuquantum/redist/cuquantum/linux-x86_64/cuquantum-linux-x86_64-22.03.0.40-archive.tar.xz
+RUN tar xvfJ cuquantum-linux-x86_64-22.03.0.40-archive.tar.xz -C /tmp
+RUN cd /tmp/cuquantum-linux-x86_64-22.03.0.40-archive ; tar cf - . | (cd /usr/local; tar vxf -)
+
+## node.js
+RUN apt install -y nodejs npm && npm install n -g &&  n stable && apt purge -y nodejs npm
+
+## npm
+RUN curl -qL https://www.npmjs.com/install.sh | sh
+
+## yarn
+RUN npm install -g yarn
+
+## ruby
+RUN wget https://cache.ruby-lang.org/pub/ruby/2.7/ruby-2.7.4.tar.gz && tar xvfz ruby-2.7.4.tar.gz && cd ruby-2.7.4 && ./configure && make && make install
+
+## python3
+RUN apt install -y python3 python3-pip
+RUN sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 1
+
+ARG DOCKER_UID=1000
+ARG DOCKER_USER=docker
+ARG DOCKER_PASSWORD=docker
+RUN useradd -u $DOCKER_UID -m $DOCKER_USER --shell /bin/bash && echo "$DOCKER_USER:$DOCKER_PASSWORD" | chpasswd && echo "$DOCKER_USER ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
+
+USER ${DOCKER_USER}
+RUN echo "\n\
+[user]\n\
+        email = ${GIT_EMAIL}\n\
+        name = ${GIT_NAME}\n\
+" > /home/$DOCKER_USER/.gitconfig
+
+SHELL ["/bin/bash", "-l", "-c"] 
+
+# qsim
+ENV PATH=/usr/local/cuda/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/home/$DOCKER_USER/.rbenv/bin:/home/$DOCKER_USER/.local/bin
+# for qsimcirq
+ENV CUQUANTUM_DIR=/usr/local
+RUN cd /home/$DOCKER_USER && pip3 install pybind11 pytest numpy sympy cirq
+RUN cd /home/$DOCKER_USER && git clone https://github.com/quantumlib/qsim.git && cd qsim && make # && make run-py-tests # to use gpu qsim must be build locally
+
+RUN cd /home/$DOCKER_USER && echo "cd /home/$DOCKER_USER" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && git clone https://github.com/rbenv/rbenv.git ~/.rbenv
+RUN cd /home/$DOCKER_USER && git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
+RUN cd /home/$DOCKER_USER && echo "export PATH=$PATH:$HOME/.rbenv/bin" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && echo "export CUQUANTUM_DIR=/usr/local" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && echo "export LANG=C.UTF-8" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && echo "export LC_CTYPE=C.UTF-8" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && echo "export LD_LIBRARY_PATH=${CUQUANTUM_DIR}/lib64:${LD_LIBRARY_PATH}" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && git clone https://github.com/qniapp/qni.git
+RUN cd /home/$DOCKER_USER && cd qni && git fetch origin cirq-backend
+RUN cd /home/$DOCKER_USER && cd qni && git checkout cirq-backend
+RUN cd /home/$DOCKER_USER && cd qni && git log -1
+
+## settings for rails
+RUN cd /home/$DOCKER_USER && cd qni/apps/www && bundle config set path 'vendor/cache' && bundle install && yarn install
+RUN cd /home/$DOCKER_USER && cd qni && yarn build && cd apps/www && ./bin/rails css:build && ./bin/rails javascript:build
+
+## settings for postgresql
+RUN sudo -u postgres service postgresql start && sudo -u postgres psql --command "CREATE USER docker WITH SUPERUSER PASSWORD 'docker';" && sudo -u postgres createdb -O docker docker
+RUN cd /home/$DOCKER_USER && sudo -u postgres service postgresql start && cd qni/apps/www && ./bin/rails db:create && ./bin/rails db:migrate && ./bin/rails db:fixtures:load
+
+RUN cd /home/$DOCKER_USER && echo -e "#!/usr/bin/env bash\n\
+export PYTHONPATH=/home/docker/qsim/ \n\
+sudo -u postgres service postgresql start \n\
+cd /home/${DOCKER_USER} ; source ~/.bashrc ; cd qni/apps/www \n\
+./bin/rails s -b 0.0.0.0" > /tmp/startup.sh
+RUN chmod 744 /tmp/startup.sh
+#ENTRYPOINT ["/bin/sh", "-c", "/tmp/startup.sh"]

Dockerfile_cuquantum

@@ -0,0 +1,105 @@
+# 1. The Qniapp is built as follows:
+#   $ git clone https://github.com/qniapp/qni.git
+#   $ cd qni
+#   $ docker build -f Dockerfile_cuquantum . -t qni_cuquantum
+# 2. Then run by:
+#   $ docker run -p 3000:3000 --gpus all --rm -it qni_cuquantum
+# 3. access http://127.0.0.1:3000 in your browser
+
+# Troubleshooting
+#   If the port 3000 is already used, change 3000 to 4000 (for example)
+#    $ docker run -p 4000:3000 --gpus all --rm -it qni_cuquantum
+#   and access http://127.0.0.1:4000 in your browser
+
+FROM nvidia/cuda:11.5.1-devel-ubuntu20.04
+
+RUN apt update
+RUN apt -y upgrade
+RUN apt install -y sudo
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt install -y tzdata
+# set your timezone
+ENV TZ Asia/Tokyo
+RUN echo "${TZ}" > /etc/timezone \
+  && rm /etc/localtime \
+  && ln -s /usr/share/zoneinfo/Asia/Tokyo /etc/localtime \
+  && dpkg-reconfigure -f noninteractive tzdata
+
+RUN apt install -y build-essential
+RUN apt install -y git wget time curl libssl-dev zlib1g-dev libpq-dev
+RUN apt install -y redis-server
+RUN apt install -y ng-common ng-cjk emacs-nox
+RUN apt install -y postgresql postgresql-contrib
+
+## cuda
+RUN apt -y install cuda-drivers
+RUN apt -y install libcutensor1 libcutensor-dev libcutensor-doc
+RUN wget https://developer.download.nvidia.com/compute/cuquantum/redist/cuquantum/linux-x86_64/cuquantum-linux-x86_64-22.03.0.40-archive.tar.xz
+RUN tar xvfJ cuquantum-linux-x86_64-22.03.0.40-archive.tar.xz -C /tmp
+RUN cd /tmp/cuquantum-linux-x86_64-22.03.0.40-archive ; tar cf - . | (cd /usr/local; tar vxf -)
+
+## node.js
+RUN apt install -y nodejs npm && npm install n -g &&  n stable && apt purge -y nodejs npm
+
+## npm
+RUN curl -qL https://www.npmjs.com/install.sh | sh
+
+## yarn
+RUN npm install -g yarn
+
+## ruby
+RUN wget https://cache.ruby-lang.org/pub/ruby/2.7/ruby-2.7.4.tar.gz && tar xvfz ruby-2.7.4.tar.gz && cd ruby-2.7.4 && ./configure && make && make install
+
+## python3
+RUN apt install -y python3 python3-pip
+RUN sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 1
+
+ARG DOCKER_UID=1000
+ARG DOCKER_USER=docker
+ARG DOCKER_PASSWORD=docker
+RUN useradd -u $DOCKER_UID -m $DOCKER_USER --shell /bin/bash && echo "$DOCKER_USER:$DOCKER_PASSWORD" | chpasswd && echo "$DOCKER_USER ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
+
+USER ${DOCKER_USER}
+RUN echo "\n\
+[user]\n\
+        email = ${GIT_EMAIL}\n\
+        name = ${GIT_NAME}\n\
+" > /home/$DOCKER_USER/.gitconfig
+
+SHELL ["/bin/bash", "-l", "-c"] 
+
+# cuQuantum
+ENV CUQUANTUM_ROOT=/usr/local
+ENV CUSTATEVEC_ROOT=/usr/local
+ENV CUTENSOR_ROOT=/usr
+ENV CUDA_PATH=/usr/local/cuda
+ENV CUQUANTUM_IGNORE_SOLVER=1
+RUN cd /home/$DOCKER_USER && pip3 install cupy-cuda115 numpy scipy cython
+RUN cd /home/$DOCKER_USER && git clone https://github.com/NVIDIA/cuQuantum.git && cd cuQuantum/python && pip3 install -v .
+
+# Qni
+RUN cd /home/$DOCKER_USER && echo "cd /home/$DOCKER_USER" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && git clone https://github.com/rbenv/rbenv.git ~/.rbenv
+RUN cd /home/$DOCKER_USER && git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
+RUN cd /home/$DOCKER_USER && echo "export PATH=$PATH:$HOME/.rbenv/bin" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && echo "export CUQUANTUM_ROOT=/usr/local" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && echo "export LD_LIBRARY_PATH=${CUQUANTUM_ROOT}/lib64:${LD_LIBRARY_PATH}" >> ~/.bashrc
+RUN cd /home/$DOCKER_USER && git clone https://github.com/nakatamaho/qni.git
+RUN cd /home/$DOCKER_USER && cd qni && git fetch origin cuquantum-backend
+RUN cd /home/$DOCKER_USER && cd qni && git checkout cuquantum-backend
+
+## settings for rails
+RUN cd /home/$DOCKER_USER && cd qni/apps/www && bundle config set path 'vendor/cache' && bundle install && yarn install
+RUN cd /home/$DOCKER_USER && cd qni && yarn build && cd apps/www && ./bin/rails css:build && ./bin/rails javascript:build
+
+## settings for postgresql
+RUN sudo -u postgres service postgresql start && sudo -u postgres psql --command "CREATE USER docker WITH SUPERUSER PASSWORD 'docker';" && sudo -u postgres createdb -O docker docker
+RUN cd /home/$DOCKER_USER && sudo -u postgres service postgresql start && cd qni/apps/www && ./bin/rails db:create && ./bin/rails db:migrate && ./bin/rails db:fixtures:load
+
+RUN cd /home/$DOCKER_USER && echo -e "#!/usr/bin/env bash\n\
+export PYTHONIOENCODING=utf-8 \n\
+sudo -u postgres service postgresql start \n\
+cd /home/${DOCKER_USER} ; source ~/.bashrc ; cd qni/apps/www \n\
+./bin/rails s -b 0.0.0.0" > /tmp/startup.sh
+RUN chmod 744 /tmp/startup.sh
+ENTRYPOINT ["/bin/sh", "-c", "/tmp/startup.sh"]

apps/www/Gemfile

@@ -35,6 +35,7 @@ gem 'better_html'
 gem 'bootsnap', '>= 1.4.2', require: false
 gem 'grover'
 gem 'serviceworker-rails'
+gem 'pycall'
 
 group :development, :test do
   gem 'byebug', platforms: %i[mri mingw x64_mingw]

apps/www/Gemfile.lock

@@ -165,6 +165,7 @@ GEM
     public_suffix (4.0.6)
     puma (5.6.4)
       nio4r (~> 2.0)
+    pycall (1.4.1)
     racc (1.6.0)
     rack (2.2.3)
     rack-mini-profiler (2.3.3)
@@ -297,6 +298,7 @@ DEPENDENCIES
   listen (>= 3.0.5, < 3.2)
   pg
   puma (~> 5.6)
+  pycall
   rack-mini-profiler
   rails (~> 6.1)
   rbtrace

apps/www/app/assets/javascripts/serviceworker.js

@@ -9,26 +9,77 @@ self.addEventListener(
     const steps = e.data.steps
     const targets = e.data.targets
     const simulator = new Simulator('0'.repeat(qubitCount))
+    const backend = e.data.backend
 
     Util.notNull(qubitCount)
     Util.notNull(stepIndex)
     Util.notNull(steps)
     Util.notNull(targets)
 
-    steps.forEach((operations, i) => {
-      simulator.runStep(operations)
-
-      self.postMessage({
-        type: 'step',
-        step: i,
-        amplitudes: i === stepIndex ? simulator.amplitudes(targets) : [],
-        blochVectors: simulator.blochVectors,
-        measuredBits: simulator.measuredBits,
-        flags: simulator.flags
-      })
-    })
+    if (backend) {
+      const json = e.data.json
+      Util.notNull(json)
+
+      runBackend(json, qubitCount, stepIndex, steps, targets, backend)
+    } else {
+      runQniSimulator(qubitCount, stepIndex, steps, targets)
+    }
 
     self.postMessage({type: 'finish'})
   },
   false
 )
+
+function runQniSimulator(qubitCount, stepIndex, steps, targets) {
+  const simulator = new Simulator('0'.repeat(qubitCount))
+
+  steps.forEach((operations, i) => {
+    simulator.runStep(operations)
+
+    self.postMessage({
+      type: 'step',
+      step: i,
+      amplitudes: i === stepIndex ? simulator.amplitudes(targets) : {},
+      blochVectors: simulator.blochVectors,
+      measuredBits: simulator.measuredBits,
+      flags: simulator.flags
+    })
+  })
+}
+
+function runBackend(json, qubitCount, stepIndex, steps, targets, backend) {
+  const params = new URLSearchParams({
+    id: json,
+    qubitCount: qubitCount,
+    stepIndex: stepIndex,
+    steps: JSON.stringify(steps),
+    targets: targets,
+    backend: backend
+  })
+
+  fetch(`/backend.json?${params}`, {
+    method: 'GET'
+  })
+    .then(response => {
+      if (!response.ok) {
+        throw new Error("Failed to connect to Qni's backend endpoint.")
+      }
+      return response.json()
+    })
+    .then(response => {
+      for (let i = 0; i < response.length; i++) {
+        const stepResult = response[i]
+        self.postMessage({
+          type: 'step',
+          step: i,
+          amplitudes: stepResult['amplitudes'],
+          blochVectors: stepResult['blochVectors'],
+          measuredBits: stepResult['measuredBits'],
+          flags: {}
+        })
+      }
+    })
+    .catch(error => {
+      console.error(error)
+    })
+}

apps/www/app/controllers/backend_controller.rb

@@ -0,0 +1,20 @@
+require 'cirq'
+
+class BackendController < ApplicationController
+  # rubocop:disable Metrics/AbcSize
+  def show
+    backend = params[:backend]
+    circuit_id = params[:id]
+    qubit_count = params[:qubitCount].to_i
+    step_index = params[:stepIndex].to_i
+    steps = params[:steps] ? JSON.parse(params[:steps]) : []
+    targets = params[:targets].split(',').map(&:to_i) if params[:targets]
+
+    raise "Unsupported backend: #{backend}" unless backend == 'cirq'
+
+    @step_results =
+      Cirq.new(circuit_id: circuit_id, qubit_count: qubit_count, step_index: step_index, steps: steps, targets: targets)
+        .run
+  end
+  # rubocop:enable Metrics/AbcSize
+end

apps/www/app/controllers/cirq_controller.rb

@@ -0,0 +1,3 @@
+class CirqController < ApplicationController
+  def show; end
+end

apps/www/app/models/concerns/routing.rb

@@ -3,15 +3,9 @@
 module Routing
   extend ActiveSupport::Concern
 
-  included do
-    include Rails.application.routes.url_helpers
-  end
+  included { include Rails.application.routes.url_helpers }
 
   def default_url_options
-    if Rails.env.production?
-      { host: 'qniapp.net' }
-    else
-      { host: 'localhost', port: 3000 }
-    end
+    Rails.env.production? ? { host: 'qniapp.net' } : { host: 'localhost', port: 3000 }
   end
 end

apps/www/app/views/backend/show.json.jbuilder

@@ -0,0 +1 @@
+json.array! @step_results