run_ipp.ipynb

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   "cell_type": "code",
   "execution_count": null,
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   "source": [
    "%config Completer.use_jedi = False\n",
    "import ipyparallel as ipp\n",
    "\n",
    "def run(cmd, executable=\"/bin/bash\"):\n",
    "    \"\"\"\n",
    "    cmd is executed by executable.\n",
    "    Both stdout and stderr is flushed into stdout.\n",
    "    Therefore if you want to split them,\n",
    "    explicitly do in cmd (write to file or throw to /dev/null)\"\"\"\n",
    "    import subprocess, sys\n",
    "    with subprocess.Popen(cmd, shell=True, executable=executable,\n",
    "                          stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as proc:\n",
    "        for line in proc.stdout:\n",
    "            sys.stdout.write(line)\n",
    "\n",
    "        return proc.returncode"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# setup\n",
    "c = ipp.Client()\n",
    "print(len(c.ids))\n",
    "lv = c.load_balanced_view()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "cmds = [\"pwd && echo {}\".format(i) for i in range(10)]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "ar = lv.map(run, cmds)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "lv.queue_status()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "ar.status"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "ar.get()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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   "name": "parallel"
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   "codemirror_mode": {
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