{ "cells": [ { "cell_type": "code", "execution_count": 1, "id": "0689e196", "metadata": { "execution": { "iopub.execute_input": "2026-10-02T14:46:28.095677Z", "iopub.status.busy": "2026-10-02T14:46:28.095487Z", "iopub.status.idle": "2026-10-02T14:46:28.099959Z", "shell.execute_reply": "2026-10-02T14:46:28.099300Z" }, "papermill": { "duration": 0.007204, "end_time": "2026-10-02T14:46:28.100508+00:00", "exception": false, "start_time": "2026-10-02T14:46:28.093304+00:00", "status": "completed" }, "tags": [ "remove-input", "remove-output", "active-ipynb" ] }, "outputs": [], "source": [ "try:\n", " from openmdao.utils.notebook_utils import notebook_mode # noqa: F401\n", "except ImportError:\n", " !python -m pip install openmdao[notebooks]" ] }, { "cell_type": "code", "execution_count": 2, "id": "fcc6fd0a", "metadata": { "execution": { "iopub.execute_input": "2026-10-02T14:46:28.104056Z", "iopub.status.busy": "2026-10-02T14:46:28.103918Z", "iopub.status.idle": "2026-10-02T14:46:28.704197Z", "shell.execute_reply": "2026-10-02T14:46:28.703393Z" }, "papermill": { "duration": 0.602912, "end_time": "2026-10-02T14:46:28.704984+00:00", "exception": false, "start_time": "2026-10-02T14:46:28.102072+00:00", "status": "completed" }, "tags": [ "remove-input", "remove-output" ] }, "outputs": [], "source": [ "from openmdao.utils.assert_utils import assert_near_equal\n", "\n" ] }, { "cell_type": "markdown", "id": "33c01cc9", "metadata": { "papermill": { "duration": 0.09897, "end_time": "2026-10-02T14:46:28.805543+00:00", "exception": false, "start_time": "2026-10-02T14:46:28.706573+00:00", "status": "completed" }, "tags": [] }, "source": [ "# Solver Recording\n", "Solver recording is useful when you want to record the iterations within a solver. \n", "The recorder can capture the values of states, errors, and residuals as the solver converges." ] }, { "cell_type": "code", "execution_count": 3, "id": "fe21ad44", "metadata": { "execution": { "iopub.execute_input": "2026-10-02T14:46:28.824346Z", "iopub.status.busy": "2026-10-02T14:46:28.823982Z", "iopub.status.idle": "2026-10-02T14:46:29.565571Z", "shell.execute_reply": "2026-10-02T14:46:29.564885Z" }, "papermill": { "duration": 0.759368, "end_time": "2026-10-02T14:46:29.566426+00:00", "exception": false, "start_time": "2026-10-02T14:46:28.807058+00:00", "status": "completed" }, "scrolled": true, "tags": [ "remove-input" ] }, "outputs": [ { "data": { "text/html": [ "\n", "\n", "\n", "\n", " \n", "\n", "\n", "

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OptionDefaultAcceptable ValuesAcceptable TypesDescription
excludes[]N/A['list']Patterns for vars to exclude in recording. (processed post-includes) Paths are relative to solver's Group. Uses fnmatch wildcards
includes['*']N/A['list']Patterns for variables to include in recording. Paths are relative to solver's Group. Uses fnmatch wildcards
record_abs_errorTrue[True, False]['bool']Set to True to record absolute error at the solver level
record_inputsTrue[True, False]['bool']Set to True to record inputs at the solver level
record_outputsTrue[True, False]['bool']Set to True to record outputs at the solver level
record_rel_errorTrue[True, False]['bool']Set to True to record relative error at the solver level
record_solver_residualsFalse[True, False]['bool']Set to True to record residuals at the solver level
\n", "\n", "\n" ], "text/plain": [ "" ] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "import openmdao.api as om\n", "om.show_options_table(\"openmdao.solvers.solver.Solver\", options_dict=\"recording_options\")" ] }, { "cell_type": "markdown", "id": "21d84a49", "metadata": { "papermill": { "duration": 0.001629, "end_time": "2026-10-02T14:46:29.569810+00:00", "exception": false, "start_time": "2026-10-02T14:46:29.568181+00:00", "status": "completed" }, "tags": [] }, "source": [ "```{note}\n", "Note that the `excludes` option takes precedence over the `includes` option.\n", "```\n", "\n", "```{note}\n", "The paths given in the `includes` and `excludes` options are relative to the `Group` that the solver is attached to.\n", "```\n", "\n", "```{note}\n", "It is currently not possible to record linear solvers.\n", "````" ] }, { "cell_type": "markdown", "id": "a48b03ac", "metadata": { "papermill": { "duration": 0.001434, "end_time": "2026-10-02T14:46:29.572810+00:00", "exception": false, "start_time": "2026-10-02T14:46:29.571376+00:00", "status": "completed" }, "tags": [] }, "source": [ "## Solver Recording Example" ] }, { "cell_type": "code", "execution_count": 4, "id": "dc82b273", "metadata": { "execution": { "iopub.execute_input": "2026-10-02T14:46:29.577147Z", "iopub.status.busy": "2026-10-02T14:46:29.576777Z", "iopub.status.idle": "2026-10-02T14:46:30.542170Z", "shell.execute_reply": "2026-10-02T14:46:30.541566Z" }, "papermill": { "duration": 0.968455, "end_time": "2026-10-02T14:46:30.542984+00:00", "exception": false, "start_time": "2026-10-02T14:46:29.574529+00:00", "status": "completed" }, "tags": [ "remove-input", "remove-output" ] }, "outputs": [ { "data": { "application/papermill.record/text/html": "
class SellarDerivatives(om.Group):\n    """\n    Group containing the Sellar MDA. This version uses the disciplines with derivatives.\n    """\n\n    def setup(self):\n        self.add_subsystem('d1', SellarDis1withDerivatives(), promotes=['x', 'z', 'y1', 'y2'])\n        self.add_subsystem('d2', SellarDis2withDerivatives(), promotes=['z', 'y1', 'y2'])\n\n        self.add_subsystem('obj_cmp', om.ExecComp('obj = x**2 + z[1] + y1 + exp(-y2)', obj=0.0,\n                                                  x=0.0, z=np.array([0.0, 0.0]), y1=0.0, y2=0.0),\n                           promotes=['obj', 'x', 'z', 'y1', 'y2'])\n\n        self.add_subsystem('con_cmp1', om.ExecComp('con1 = 3.16 - y1', con1=0.0, y1=0.0),\n                           promotes=['con1', 'y1'])\n        self.add_subsystem('con_cmp2', om.ExecComp('con2 = y2 - 24.0', con2=0.0, y2=0.0),\n                           promotes=['con2', 'y2'])\n\n        self.set_input_defaults('x', 1.0)\n        self.set_input_defaults('z', np.array([5.0, 2.0]))\n
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This version uses the disciplines with derivatives.\n \"\"\"\n\n def setup(self):\n self.add_subsystem('d1', SellarDis1withDerivatives(), promotes=['x', 'z', 'y1', 'y2'])\n self.add_subsystem('d2', SellarDis2withDerivatives(), promotes=['z', 'y1', 'y2'])\n\n self.add_subsystem('obj_cmp', om.ExecComp('obj = x**2 + z[1] + y1 + exp(-y2)', obj=0.0,\n x=0.0, z=np.array([0.0, 0.0]), y1=0.0, y2=0.0),\n promotes=['obj', 'x', 'z', 'y1', 'y2'])\n\n self.add_subsystem('con_cmp1', om.ExecComp('con1 = 3.16 - y1', con1=0.0, y1=0.0),\n promotes=['con1', 'y1'])\n self.add_subsystem('con_cmp2', om.ExecComp('con2 = y2 - 24.0', con2=0.0, y2=0.0),\n promotes=['con2', 'y2'])\n\n self.set_input_defaults('x', 1.0)\n self.set_input_defaults('z', np.array([5.0, 2.0]))" }, "metadata": { "scrapbook": { "mime_prefix": "application/papermill.record/", "name": "code_src91" } }, "output_type": "display_data" } ], "source": [ "from openmdao.utils.notebook_utils import get_code\n", "from myst_nb import glue\n", "glue(\"code_src91\", get_code(\"openmdao.test_suite.components.sellar_feature.SellarDerivatives\"), display=False)" ] }, { "cell_type": "markdown", "id": "8da9bbea", "metadata": { "papermill": { "duration": 0.001168, "end_time": "2026-10-02T14:46:30.569571+00:00", "exception": false, "start_time": "2026-10-02T14:46:30.568403+00:00", "status": "completed" }, "tags": [] }, "source": [ ":::{dropdown} `SellarDerivatives` class definition \n", "\n", "{glue:}`code_src91`\n", ":::" ] }, { "cell_type": "code", "execution_count": 5, "id": "fab31040", "metadata": { "execution": { "iopub.execute_input": "2026-10-02T14:46:30.596710Z", "iopub.status.busy": "2026-10-02T14:46:30.596497Z", "iopub.status.idle": "2026-10-02T14:46:32.405020Z", "shell.execute_reply": "2026-10-02T14:46:32.404222Z" }, "papermill": { "duration": 1.811515, "end_time": "2026-10-02T14:46:32.405620+00:00", "exception": false, "start_time": "2026-10-02T14:46:30.594105+00:00", "status": "completed" }, "scrolled": true, "tags": [] }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "[1790952391.834932] [runnervm8df0l:10579:0] ib_iface.c:1269 UCX ERROR mana_0: iface 0x555c673a9fb0 failed to create UD QP TX wr:256 sge:6 inl:64 resp:0 RX wr:4096 sge:1 resp:0 failed: Operation not supported\n", "[1790952391.835190] [runnervm8df0l:10579:0] ucp_worker.c:1412 UCX ERROR uct_iface_open(ud_verbs/mana_0:1) failed: Input/output error\n" ] }, { "name": "stderr", "output_type": "stream", "text": [ "[runnervm8df0l:10579] pml_ucx.c:313 Error: Failed to create UCP worker\n" ] }, { "name": "stdout", "output_type": "stream", "text": [ "NL: NLBGS Converged in 7 iterations\n" ] } ], "source": [ "import openmdao.api as om\n", "from openmdao.test_suite.components.sellar_feature import SellarDerivatives\n", "\n", "prob = om.Problem(name='solver_recording', model=SellarDerivatives())\n", "prob.setup()\n", "\n", "recorder = om.SqliteRecorder(\"solver_recording.sql\")\n", "\n", "solver = prob.model.nonlinear_solver = om.NonlinearBlockGS()\n", "solver.add_recorder(recorder)\n", "solver.recording_options['record_abs_error'] = True\n", "solver.options['use_apply_nonlinear'] = True\n", "\n", "prob.run_model()" ] }, { "cell_type": "code", "execution_count": 6, "id": "34be0adb", "metadata": { "execution": { "iopub.execute_input": "2026-10-02T14:46:32.409333Z", "iopub.status.busy": "2026-10-02T14:46:32.409112Z", "iopub.status.idle": "2026-10-02T14:46:32.541674Z", "shell.execute_reply": "2026-10-02T14:46:32.540981Z" }, "papermill": { "duration": 0.135121, "end_time": "2026-10-02T14:46:32.542209+00:00", "exception": false, "start_time": "2026-10-02T14:46:32.407088+00:00", "status": "completed" }, "tags": [] }, "outputs": [ { "data": { "text/html": [ "\n", "\n", "\n", "\n", " \n", "\n", "\n", "

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root.nonlinear_solver
rank0:root._solve_nonlinear|0|NonlinearBlockGS|0
rank0:root._solve_nonlinear|0|NonlinearBlockGS|1
rank0:root._solve_nonlinear|0|NonlinearBlockGS|2
rank0:root._solve_nonlinear|0|NonlinearBlockGS|3
rank0:root._solve_nonlinear|0|NonlinearBlockGS|4
rank0:root._solve_nonlinear|0|NonlinearBlockGS|5
rank0:root._solve_nonlinear|0|NonlinearBlockGS|6
\n", "\n", "\n" ], "text/plain": [ "" ] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "prob.cleanup()\n", "cr = om.CaseReader(prob.get_outputs_dir() / \"solver_recording.sql\")\n", "solver_cases = cr.list_cases('root.nonlinear_solver')" ] }, { "cell_type": "code", "execution_count": 7, "id": "5276ab0a", "metadata": { "execution": { "iopub.execute_input": "2026-10-02T14:46:32.546206Z", "iopub.status.busy": "2026-10-02T14:46:32.546045Z", "iopub.status.idle": "2026-10-02T14:46:32.548277Z", "shell.execute_reply": "2026-10-02T14:46:32.547848Z" }, "papermill": { "duration": 0.004922, "end_time": "2026-10-02T14:46:32.548986+00:00", "exception": false, "start_time": "2026-10-02T14:46:32.544064+00:00", "status": "completed" }, "tags": [ "remove-input", "remove-output" ] }, "outputs": [], "source": [ "assert len(solver_cases) == 7" ] }, { "cell_type": "code", "execution_count": 8, "id": "b8f777c8", "metadata": { "execution": { "iopub.execute_input": "2026-10-02T14:46:32.552227Z", "iopub.status.busy": "2026-10-02T14:46:32.552077Z", "iopub.status.idle": "2026-10-02T14:46:32.556439Z", "shell.execute_reply": "2026-10-02T14:46:32.555869Z" }, "papermill": { "duration": 0.006721, "end_time": "2026-10-02T14:46:32.557015+00:00", "exception": false, "start_time": "2026-10-02T14:46:32.550294+00:00", "status": "completed" }, "scrolled": true, "tags": [] }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "2.2545141061171243\n", "0.043663258684468076\n", "0.0008635223885384846\n", "1.707062189737485e-05\n", "3.3746495375908125e-07\n", "6.671260877055829e-09\n", "1.318802844707534e-10\n" ] } ], "source": [ "for case_id in solver_cases:\n", " print(cr.get_case(case_id).abs_err)" ] }, { "cell_type": "code", "execution_count": 9, "id": "cc3114c8", "metadata": { "execution": { "iopub.execute_input": "2026-10-02T14:46:32.560240Z", "iopub.status.busy": "2026-10-02T14:46:32.560106Z", "iopub.status.idle": "2026-10-02T14:46:32.563875Z", "shell.execute_reply": "2026-10-02T14:46:32.563238Z" }, "papermill": { "duration": 0.006005, "end_time": "2026-10-02T14:46:32.564307+00:00", "exception": false, "start_time": "2026-10-02T14:46:32.558302+00:00", "status": "completed" }, "tags": [ "remove-input", "remove-output" ] }, "outputs": [ { "data": { "text/plain": [ "np.float64(2.7132782804768756e-09)" ] }, "execution_count": 9, "metadata": {}, "output_type": "execute_result" } ], "source": [ "assert_near_equal(cr.get_case(0).abs_err, 2.2545141, tolerance=1e-8)" ] } ], "metadata": { "celltoolbar": "Tags", "kernelspec": { "display_name": "Python 3 (ipykernel)", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.13.14" }, "orphan": true, "papermill": { "default_parameters": {}, "duration": 5.932061, "end_time": "2026-10-02T14:46:33.382345+00:00", "environment_variables": {}, "exception": null, "input_path": "/home/runner/work/OpenMDAO/OpenMDAO/openmdao/docs/openmdao_book/features/recording/solver_recording.ipynb", "output_path": "/home/runner/work/OpenMDAO/OpenMDAO/openmdao/docs/_executed_book/features/recording/solver_recording.ipynb", "parameters": {}, "start_time": "2026-10-02T14:46:27.450284+00:00", "version": "2.7.0" } }, "nbformat": 4, "nbformat_minor": 5 }