Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised") translateModel(Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00143/0.00143, allocations: 104 kB / 16.27 MB, free: 5.98 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001365/0.001365, allocations: 189.8 kB / 17.2 MB, free: 5.605 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.388/1.388, allocations: 205.1 MB / 223.1 MB, free: 12.29 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.744/1.744, allocations: 292.3 MB / 0.5495 GB, free: 17.61 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001435/0.001435, allocations: 75.02 kB / 0.6722 GB, free: 6.551 MB / 0.545 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2403/0.2418, allocations: 114.6 MB / 0.784 GB, free: 3.883 MB / 0.6544 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised): time 0.6571/0.8989, allocations: 161.6 MB / 0.9418 GB, free: 8.98 MB / 0.7325 GB Notification: Performance of NFInst.instExpressions: time 0.005064/0.904, allocations: 3.616 MB / 0.9454 GB, free: 5.355 MB / 0.7325 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003912/0.9044, allocations: 11.94 kB / 0.9454 GB, free: 5.344 MB / 0.7325 GB Notification: Performance of NFTyping.typeComponents: time 0.0006044/0.9051, allocations: 158.9 kB / 0.9455 GB, free: 5.188 MB / 0.7325 GB Notification: Performance of NFTyping.typeBindings: time 0.001336/0.9065, allocations: 0.5328 MB / 0.9461 GB, free: 4.652 MB / 0.7325 GB Notification: Performance of NFTyping.typeClassSections: time 0.001211/0.9077, allocations: 432.8 kB / 0.9465 GB, free: 4.234 MB / 0.7325 GB Notification: Performance of NFFlatten.flatten: time 0.002643/0.9103, allocations: 2.542 MB / 0.949 GB, free: 1.688 MB / 0.7325 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001165/0.9115, allocations: 0.924 MB / 0.9499 GB, free: 0.7578 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001714/0.9132, allocations: 1.037 MB / 0.9509 GB, free: 15.72 MB / 0.7481 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0008291/0.9141, allocations: 0.7039 MB / 0.9516 GB, free: 15.01 MB / 0.7481 GB Notification: Performance of NFPackage.collectConstants: time 9.445e-05/0.9142, allocations: 56 kB / 0.9516 GB, free: 14.96 MB / 0.7481 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001394/0.9156, allocations: 0.7367 MB / 0.9523 GB, free: 14.22 MB / 0.7481 GB Notification: Performance of NFScalarize.scalarize: time 0.0003288/0.9159, allocations: 306.9 kB / 0.9526 GB, free: 13.92 MB / 0.7481 GB Notification: Performance of NFVerifyModel.verify: time 0.0006364/0.9166, allocations: 0.5439 MB / 0.9532 GB, free: 13.37 MB / 0.7481 GB Notification: Performance of NFConvertDAE.convert: time 0.001547/0.9181, allocations: 1.39 MB / 0.9545 GB, free: 11.98 MB / 0.7481 GB Notification: Performance of FrontEnd - DAE generated: time 4.929e-06/0.9181, allocations: 0 / 0.9545 GB, free: 11.98 MB / 0.7481 GB Notification: Performance of FrontEnd: time 1.833e-06/0.9182, allocations: 0 / 0.9545 GB, free: 11.98 MB / 0.7481 GB Notification: Performance of Transformations before backend: time 1.294e-05/0.9182, allocations: 0 / 0.9545 GB, free: 11.98 MB / 0.7481 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 125 * Number of variables: 125 Notification: Performance of Generate backend data structure: time 0.002292/0.9205, allocations: 1.448 MB / 0.9559 GB, free: 10.47 MB / 0.7481 GB Notification: Performance of prepare preOptimizeDAE: time 4.081e-05/0.9205, allocations: 12.03 kB / 0.9559 GB, free: 10.46 MB / 0.7481 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007721/0.9213, allocations: 198.3 kB / 0.9561 GB, free: 10.26 MB / 0.7481 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001171/0.9225, allocations: 0.7984 MB / 0.9569 GB, free: 9.406 MB / 0.7481 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.825e-05/0.9225, allocations: 45 kB / 0.9569 GB, free: 9.363 MB / 0.7481 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.064e-05/0.9226, allocations: 60 kB / 0.957 GB, free: 9.305 MB / 0.7481 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001135/0.9238, allocations: 0.7926 MB / 0.9578 GB, free: 8.438 MB / 0.7481 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.522e-05/0.9238, allocations: 0 / 0.9578 GB, free: 8.438 MB / 0.7481 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.664e-05/0.9239, allocations: 25.78 kB / 0.9578 GB, free: 8.414 MB / 0.7481 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.466e-05/0.9239, allocations: 12 kB / 0.9578 GB, free: 8.402 MB / 0.7481 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008969/0.9248, allocations: 0.5344 MB / 0.9583 GB, free: 7.863 MB / 0.7481 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.004106/0.9289, allocations: 4.605 MB / 0.9628 GB, free: 2.879 MB / 0.7481 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006935/0.9296, allocations: 414.3 kB / 0.9632 GB, free: 2.465 MB / 0.7481 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003812/0.93, allocations: 252.7 kB / 0.9635 GB, free: 2.215 MB / 0.7481 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002966/0.9303, allocations: 190.2 kB / 0.9637 GB, free: 1.992 MB / 0.7481 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005025/0.9308, allocations: 303.1 kB / 0.9639 GB, free: 1.68 MB / 0.7481 GB Notification: Performance of pre-optimization done (n=31): time 1.804e-06/0.9308, allocations: 0 / 0.9639 GB, free: 1.68 MB / 0.7481 GB Notification: Performance of matching and sorting (n=31): time 0.003796/0.9346, allocations: 1.311 MB / 0.9652 GB, free: 376 kB / 0.7481 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.483e-05/0.9347, allocations: 89.09 kB / 0.9653 GB, free: 268 kB / 0.7481 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001344/0.9361, allocations: 1.122 MB / 0.9664 GB, free: 15.12 MB / 0.7637 GB Notification: Performance of collectPreVariables (initialization): time 4.779e-05/0.9361, allocations: 35.58 kB / 0.9664 GB, free: 15.08 MB / 0.7637 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004295/0.9366, allocations: 492.1 kB / 0.9669 GB, free: 14.6 MB / 0.7637 GB Notification: Performance of collectInitialBindings (initialization): time 9.706e-05/0.9367, allocations: 110.5 kB / 0.967 GB, free: 14.49 MB / 0.7637 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001606/0.9368, allocations: 106 kB / 0.9671 GB, free: 14.38 MB / 0.7637 GB Notification: Performance of setup shared object (initialization): time 0.0001227/0.937, allocations: 330 kB / 0.9674 GB, free: 14.05 MB / 0.7637 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003927/0.9374, allocations: 214.4 kB / 0.9676 GB, free: 13.84 MB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006161/0.938, allocations: 0.5174 MB / 0.9681 GB, free: 13.19 MB / 0.7637 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008945/0.9389, allocations: 0.6273 MB / 0.9687 GB, free: 12.48 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.37e-06/0.9389, allocations: 3.984 kB / 0.9688 GB, free: 12.48 MB / 0.7637 GB Notification: Performance of matching and sorting (n=54) (initialization): time 0.0023/0.9412, allocations: 1.042 MB / 0.9698 GB, free: 11.45 MB / 0.7637 GB Notification: Performance of prepare postOptimizeDAE: time 4.32e-05/0.9413, allocations: 34.33 kB / 0.9698 GB, free: 11.41 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.23e-05/0.9413, allocations: 8.047 kB / 0.9698 GB, free: 11.4 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001374/0.9427, allocations: 368.3 kB / 0.9702 GB, free: 11.04 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002224/0.9429, allocations: 59.84 kB / 0.9702 GB, free: 10.98 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001061/0.944, allocations: 1.017 MB / 0.9712 GB, free: 9.941 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007053/0.9447, allocations: 71.48 kB / 0.9713 GB, free: 9.871 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.279e-05/0.9448, allocations: 24 kB / 0.9713 GB, free: 9.848 MB / 0.7637 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007493/0.9455, allocations: 0.4928 MB / 0.9718 GB, free: 9.348 MB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0005863/0.9461, allocations: 0.4928 MB / 0.9723 GB, free: 8.727 MB / 0.7637 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007606/0.9469, allocations: 0.5498 MB / 0.9728 GB, free: 8.098 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.166e-06/0.9469, allocations: 0 / 0.9728 GB, free: 8.098 MB / 0.7637 GB Notification: Performance of matching and sorting (n=54) (initialization_lambda0): time 0.001577/0.9485, allocations: 0.8262 MB / 0.9736 GB, free: 7.254 MB / 0.7637 GB Notification: Performance of prepare postOptimizeDAE: time 4.235e-05/0.9485, allocations: 42.47 kB / 0.9737 GB, free: 7.207 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.032e-05/0.9486, allocations: 8.109 kB / 0.9737 GB, free: 7.199 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005052/0.9491, allocations: 213.6 kB / 0.9739 GB, free: 6.988 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002112/0.9493, allocations: 59.91 kB / 0.9739 GB, free: 6.93 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00388/0.9532, allocations: 3.343 MB / 0.9772 GB, free: 3.43 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007684/0.954, allocations: 67.97 kB / 0.9772 GB, free: 3.363 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.077e-05/0.954, allocations: 20.56 kB / 0.9773 GB, free: 3.344 MB / 0.7637 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 (pulse_p.count,$PRE.pulse_p.count,pulse_p.T_start,$PRE.pulse_p.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (34): * Single equations (assignments): 32 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,19)} Notification: Performance of prepare postOptimizeDAE: time 0.0002434/0.9543, allocations: 216.2 kB / 0.9775 GB, free: 3.125 MB / 0.7637 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001294/0.9544, allocations: 102.8 kB / 0.9776 GB, free: 3.023 MB / 0.7637 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001337/0.9557, allocations: 0.7176 MB / 0.9783 GB, free: 2.297 MB / 0.7637 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.661e-06/0.9558, allocations: 4.656 kB / 0.9783 GB, free: 2.293 MB / 0.7637 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.043e-06/0.9558, allocations: 0 / 0.9783 GB, free: 2.293 MB / 0.7637 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.157e-06/0.9558, allocations: 7.969 kB / 0.9783 GB, free: 2.285 MB / 0.7637 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002421/0.9582, allocations: 1.599 MB / 0.9798 GB, free: 0.6094 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.4e-06/0.9582, allocations: 4 kB / 0.9799 GB, free: 0.6055 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001119/0.9583, allocations: 23.92 kB / 0.9799 GB, free: 0.582 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004786/0.9588, allocations: 240.3 kB / 0.9801 GB, free: 356 kB / 0.7637 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.542e-05/0.9589, allocations: 8 kB / 0.9801 GB, free: 348 kB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009362/0.9598, allocations: 0.9749 MB / 0.9811 GB, free: 15.34 MB / 0.7794 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.211e-06/0.9598, allocations: 7.969 kB / 0.9811 GB, free: 15.33 MB / 0.7794 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001268/0.9611, allocations: 0.8218 MB / 0.9819 GB, free: 14.47 MB / 0.7794 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003121/0.9614, allocations: 211.9 kB / 0.9821 GB, free: 14.24 MB / 0.7794 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001047/0.9615, allocations: 11.98 kB / 0.9821 GB, free: 14.23 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003975/0.9619, allocations: 23.92 kB / 0.9821 GB, free: 14.21 MB / 0.7794 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.117e-05/0.962, allocations: 31.89 kB / 0.9821 GB, free: 14.18 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.142e-05/0.9621, allocations: 12 kB / 0.9822 GB, free: 14.16 MB / 0.7794 GB Notification: Performance of sorting global known variables: time 0.001011/0.9631, allocations: 0.7955 MB / 0.9829 GB, free: 13.36 MB / 0.7794 GB Notification: Performance of sort global known variables: time 1.5e-07/0.9631, allocations: 0 / 0.9829 GB, free: 13.36 MB / 0.7794 GB Notification: Performance of remove unused functions: time 0.001256/0.9644, allocations: 435.4 kB / 0.9833 GB, free: 12.93 MB / 0.7794 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count) * Number of discrete states: 1 (pulse_p.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (12): * Single equations (assignments): 9 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,19)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0004472/0.9648, allocations: 172.4 kB / 0.9835 GB, free: 12.77 MB / 0.7794 GB Notification: Performance of simCode: created initialization part: time 0.001941/0.9668, allocations: 1.078 MB / 0.9846 GB, free: 11.65 MB / 0.7794 GB Notification: Performance of simCode: created event and clocks part: time 5.4e-06/0.9668, allocations: 0 / 0.9846 GB, free: 11.65 MB / 0.7794 GB Notification: Performance of simCode: created simulation system equations: time 0.0004769/0.9673, allocations: 240 kB / 0.9848 GB, free: 11.42 MB / 0.7794 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001876/0.9692, allocations: 465.4 kB / 0.9852 GB, free: 11 MB / 0.7794 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00271/0.9719, allocations: 1.819 MB / 0.987 GB, free: 9.125 MB / 0.7794 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007745/0.9727, allocations: 1.184 MB / 0.9882 GB, free: 7.91 MB / 0.7794 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001268/0.9728, allocations: 59.44 kB / 0.9882 GB, free: 7.852 MB / 0.7794 GB Notification: Performance of SimCode: time 8.21e-07/0.9728, allocations: 0 / 0.9882 GB, free: 7.852 MB / 0.7794 GB Notification: Performance of Templates: time 0.02825/1.001, allocations: 20.32 MB / 1.008 GB, free: 3.688 MB / 0.795 GB make -j1 -f Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.makefile (rm -f Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.pipe ; mkfifo Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.pipe >> ../files/Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.sim & ./Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.pipe 2>&1)