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Tips and Tricks for Post-Processing OVERFLOW Results with

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1. Applied Research Group Seeking Answers Deploying Solutions Tips amp Tricks for post processing OVERFLOW Results with FieldView 13 ARG 12 01 DR EARL P N DUQUE MANAGER OF APPLIED RESEARCH INTELLIGENT LIGHT www ilight com Preface As an OVERFLOW and FieldView user for several years I d like to share with you several methods I ve used for getting my work done in a more efficient manner With the most recent version FieldView 13 you ll find even more features and workflows that will benefit your work Whether its reading your data more completely using the new OVERFLOW direct reader using parallel processing to speed up the post processing using our XDB technology to reduce your saved data or using FieldView to post process data from either your laptop or remotely on the big iron like NASA s Pleiades I m sure you may find that at least one of the Tips and Tricks contained in this write up will be useful to your daily work Cheers e Earl P N Duque Manager of Applied Research Intelligent Light epd ilight com 201 460 4700 x223 ARG 12 01 Page 2 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group www ilight com Tips amp Tricks for post processing OVERFLOW Results with FieldView 13 Contents
2. example 2 qsub l interactive pbs where interactive pbs is bin bash PBS nodes 2 ppn 2 cat SPBS_ NODEFILE gt machinefile end of script 3 Step 2 will start up an interactive shell on the first node that was assigned Make note of that node We ll assume for this example the first node is node _01 4 From the client workstation execute the following command ssh f N C L 22222 node_01 22 username sparky ilight com ARG 12 01 Page 13 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group www ilight com Enter password for the head node sparky ilight com 5 Then on the client workstation execute the following command ssh C R 7777 desktop_1P 12345 p 22222 epd localhost opt fv12 3 fv bin fvsrv localhost port 7777 At this point the user would then utilize an automatic client server mode that establishes a client server connection to Sparky When the user goes to select a file the login node Sparky will forward the command to start the FieldView server on the master node in this case node001 The master node would then start the FieldView server process and the slave processes on the allocated machines The user would then post process as usual Tip 10 Reduce the amount of volume data saved to disk by using XDB
3. workflow Large unsteady OVERFLOW2 simulations often require the post processing of a large amount of grid and solution datafiles which can become difficult to manage The volumetric data requires large amount of storage space that can exceed terabytes of data and strain the available storage capacity Moving the data between remote and local workstations may be prohibitive because of the wall time required to move across computer networks As presented in Tip 9 FieldView Client Server mode can alleviate this issue However for transient cases the time to interactively sweep through a large unsteady dataset could become tedious A technique that reduces the amount data stored moved and processed interactively is the eXtract DataBase XDB workflow In the following example of a helicopter rotor simulation FieldView was executed sequentially with the OVERFLOW flow solver via a bash script OVERFLOW executed for 5 degrees of rotor rotation saved the grid and solution data to disk and then exited Upon exit FieldView then ran in batch to create two lso Surfaces of Vorticity Magnitude The purpose was to avoid saving all the transient volume data and save only the transient XDB files In this example a full rotor revolution of data saved every 5 degrees for rotation would of required 93 55 GB of disc space in comparison to 1 575GB for the XDB with two Iso Surfaces a data reduction of 60 times Figure 10 presents the workflow as outli
4. s keys typically stored in ssh ssh authorized keys Make sure that the permissions of the directory ssh and the files in ssh only have user read and write permissions others and groups must not have read write permissions Next a server file srv needs to be created We recommend that each user maintains a personal collection of srv files In the FieldView installation directory V_HOME sconfig you will find srv template which you can modify for your own situation There are 3 types of servers that is set via the ServerType single processor standard shared memory shared_mem_parallel or distributed cluster parallel Figure 5a shows the server config file for a Windows client using the Cygwin ssh remote_server srv and Figure 5b shows the server config file for a Linux client Note the only difference is the ssh executable location i Fieldview Se server Configuration Template U choose true for gga start Autostart tr a i Choose true for ene start rae rt tr i choose one of pee gat options T choose one of the following options ServerType d_mem_parallel i ServerType shared_men_parallel Set the path to the server program Set the path to the server program cServerfirectery fopt fvl3 1 1 fv bin Serverbirectery fopt fvl3 1 1 fv bin E t rane the mpich argument for np number of servers option ITY the mR Lh Eeamant for np number of servers option Muni 5 iaz choose true to
5. the following default naming convention x 1 X 2 x 3 with fvbnd files specified as either x 1 fvbnd or simply x fvond Note that file names used in this transient naming convention must have a single Tip 6 Use Bobby Nichols fvbnd f code to automatically generate Boundary Surface fvbnd files For a transient grid case where the bricks change in time OVERFLOW2 will output transient brick files for which the time step number is specified as a numeric string suffix i e orkset FieldView supports this naming convention and will automatically match the brkset file with its corresponding x 4 grid file However a FieldView Boundary Surface File i e x 4 fvbnd is needed to visualize the grids changing in time and treat them as a transient dataset Bobby Nichols from Arnold Engineering and Development Center AEDC has contributed a utility to the standard OVERFLOW2 distribution fvond f located in over2 2 tools unsupported fvbin f The program uses over namelist and the grid filename to create the boundary file The resulting fvbnd file contains default boundary surface names based upon the boundary conditions in OVERFLOW i e viscous adiabatic wall EXTRAP 5 amp overlap 10 The boundary surface names will become available in the Boundary Surface visualization panel and can be easily selected for display as shown in Figure 3 ARG 12 01 Page 8 Intelligent Light 301 Route 17 North 7 Floor Ruther
6. 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group www ilight com GAMINF Freestream specific heat ratio gammaz inf BETA Sideslip angle TINF Freestream dimensional temperature Rankine IGAM Specifies the thermodynamic model HTINF Freestream stagnation enthalpy H inf HT1 HT2 The lower and upper stagnation enthalpy limits for IGAM 2 RGAS NQC An array of specific gas constants FSMACH Freestream Mach number TVREF Simulation time t DTVREF Timestep size delta t The above constants are available for use in the FieldView function calculator and may be used to create custom functions The correct syntax for use in the function calculator is to add OVERFLOW as a prefix to the constant for instance REFMACH becomes OVERFLOW_FSMACH Tip 3 Use Basic Local Parallel to get parallel speed up Three for Free Parallel Processing of OVERFLOW2 data is very easy If you re running an overset grid case with OVERFLOW then your data can be automatically processed using your shared memory workstation or laptop for Free Every FieldView license has 3 for free which allows up to 3 slave processes and 1 master process To enable this capability you simply need to select the Local basic parallel feature in the File gt Data Input panel as shown in Figure 3 You wo
7. Tip 1 Automatically detect the file type using Use the OVERFLOW ReadeP cccceeccceseecceeneseeeeseseeecsseeeeeeeees 4 Tip 2 The OVERFLOW Reader gives you access to all of OVERFLOW s turbulence variables and thermodynamically correct derived FUNCTIONS cccccceeecceceeccceeececeecsceecseeeeceseuecseeuesseeneseseuacsseueseseneeeeees 4 Tip 3 Use Basic Local Parallel to get parallel speed up Three for Free cccccccescccseesceeneceeessseeeeseeeeeeceeeness 6 Tip 4 Get a factor 2 speed up using brkset restart or brkset files cece ceeccccecseceeeeesececeeeceeeeeneceeseeeeeees 7 Tip 5 Use the automatically detected transient dataset feature to manage transient data ccccceseceeeeeeeees 8 Tip 6 Use Bobby Nichols fvbnd f code to automatically generate Boundary Surface fvbnd files 00 8 Tip 7 Use the fvbnd files to View AMR grids evolve in TIME ccceeeccccsssecceeeeecceceesececeeesececseeseceeaeecetsennecessages 9 Tip 8 Use client server to avoid moving for files across slow networks ccccccesseccecceseceeeeesececeeseceeeeeneceeeenes 10 Tip 9 Use Client Server with interactive PBS queues to post process very large datasets nenecese 13 Tip 10 Reduce the amount of volume data saved to disk by Using XDB WOrkfIOW cccccessecceeeseceeeeeeceeeeees 14 MY OSC arate cst pa sense etn cee see eis meauemence nee asses otee heros eaccnnaere oe taseaeeceancesuae
8. ction Density Q1 Normalized density PLOT3D Stagnation density OVERFLOW Norm stag density OVERFLOW Log norm density PLOT3D Pressure OVERFLOW Norm pressure OVERFLOW Stagnation press OVERFLOW Norm stag press OVERFLOW Cp OVERFLOW Stagnation Cp OVERFLOW Pitot pressure OVERFLOW Pitot press ratio OVERFLOW Dynamic pressure PLOT3D Log norm pressure OVERFLOW Temperature OVERFLOW Norm temperature OVERFLOW Stag temperature OVERFLOW Norm stag temp OVERFLOW Log norm temp OVERFLOW CSE cae EE Function Selectio Function Selection Entropy measure s1 OVERFLOW vorticity lt dir PLOT3D vorticity y dir PLOT3D vorticity z dir PLOT3D Vorticity Magnitude PLOT3D Swirl PLOT3D Vel x Vort mag PLOT3D Helicity density PLOT3D Relative helicity PLOT3D Filterrel helicity PLOT3D Shock function OVERFLOW Filter shock func OVERFLOW Press gradient mag OVERFLOW Dens gradient mag PLOT3D gamma Q6 turbulence model quantity 1 Q7 gas constant R Shock Filter OVERFLOW CS cance Figure 2 Function selection panel showing OVERFLOW and PLOTSD functions and also turbulence model quantity Another specific difference between the standard PLOT3D format and the OVERFLOW 2 format is an expanded section of constants used to derive advanced built in functions These constants are ARG 12 01 Page 5 Intelligent Light 301 Route 17 North
9. e the server program l ServerDirectory opt tv1l3 1 1 fv bin i Specify the wal argument for np number of servers option iUmMProcs Specify the mpich argument for np number of servers option Needed on server if tae a is Cluster_parallel or p4 umProcs 5 iachineFile fopt fv13 1 1 fv bin mpich share remote_server machines 1 Choose true to turn on port forwarding tunneling Choose true to turn on port forwarding tunneling Portrorward true OPERETE true Select the server side port number for port forwarding l Select the server side port number for port forwarding ServerPort 7777 ServerPort T787 g l choose communication protocol for remote shell from client choose communication protocol for remote shell from client Remotesne crycyowin bin ssh exe RemoteShell E cygwinbin ssh exe C l Choose communication protocol for p4 operation at server I P4 RSHCOMMAND Following options are maintained for backward compabi lity l ServerName name_of_remote_server com j StartDirectory home epd Following options are maintained for backward compabi lity T servernName remote_server com remote_server_shmem srv dos format 32 lines 624 characters z remote_server_p4 srv dos format 33 dines 225 characters f a Shared Memory srv b Distributed Processing on a Cluster Figure 8 Parallel srv files for shared memory and cluster distributed parallel ARG 12 01 Page 12 Intelligent Li
10. ford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group www ilight com File Edit View Visualization Panels Tools Help PDA Aa pa Eron Lunt EB 88 O viewer Options Demote Simple gt Object Action Detach Q Figure 3 Boundary Surfaces using Nichols fvbnd tool Tip 7 Use the fvbnd files to view AMR grids evolve in time FieldView supports Adaptive Mesh Refinement AMR grids from OVERFLOW where the grids total number and sizes change in time or with time step Figure 4 shows coordinate cut plane and boundary surfaces for a cylinder post with the AMR mesh shown at two time steps Must have a fvbnd file defined Figure 4 Display of a Coordinate Cut Plane of an OVERFLOW2 AMR Grid and Solution at 2 different time steps ARG 12 01 Page 9 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners intelligent Light Applied Research Group Tip 8 www ilight com Use client server to avoid moving for files across slow networks Growing grid sizes often preclude being able to transfer files from remote computer servers to a local workstations Using FieldView s Client Server capability is one way to avoid moving the data In Clien
11. ght 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners intelligent Light Applied Research Group www ilight com Tip 9 Use Client Server with interactive PBS queues to post process very Often ti cluster large datasets mes users need to go through some sort of queuing system to utilize compute nodes behind a login node By running in Client Server Manual mode and using a double ssh tunnel the user can make use of the processors and memory of a large cluster to post process their data and interactively explore their data If the local systems allows an interactive queue i e qsub l the following Local first nhall second shell method may work on your system node 01 master node node o2 In the example parallel cluster setup there is a Local rode 03 desktop which acts as the client The Login Node p Sparky also serves as the PBS server and node _01 serves as the master node of the job which sparky desktop Login Node node 04 on cluster O commands the remaining nodes The following O steps outline how to use an interactive queue O session to interactively explore with FieldView compute nodes Figure 9 Parallel Setup 0 Startup fieldview and go into manual mode 1 from the client workstation ssh onto headnode sparky ilight com is the headnode assumed in this
12. ions f AcuSolve FV UNS Export remote _server_p4 Ss ANSYS CFX FV UNS Expert remote_server_shmem Variable name FV_SERVER_CONFIG_DIR a CFO FVW UNS Export M Chine Cit vie Shructured Variable value C cygwin home epd sconfig m BE es ig COBALT a UNS Export i FLOW 30 Animation Data ge FLUENT Direct Reader FLUENT FV UNS Export Paine System variables PY UNS p HAVOC Variable Value Coord LS DYNA State Database Direct Reader 5 i i Cl D asl log Destination file amp iiae ee a Bound OpenFOAM Direct padi CCP_INC C Program Files Microsoft HPC Pack 2 v OpenFOAM FV UNS Export CCP_LIB32 C Program Files Microsoft HPC Pack 2 erin OVERFLOW cS hikan iia HPC ae J PLOTSD _ 2 ie i STAR COM FV UNS Export New __ Eott ha STARCD FV UNS Expat XOR Import Apply h More Readers a Da Append Sampled Data Infagnmrs EE config eamp o ar ae x l FieldView Server Configuration Template F DL Fieldview Server Configuration Template 1 oS SSS SSS SS SS SS SS SS SS SS SS SS SS SS Se SS 1 _ I Choose true for automatic start Choose true for automatic start Autostart true li autostart 1 1 choose one of the following options choose one of the following options serverType cluster_parallel ServerType shared_mem_parallel l Set the path to the server program l ServerDirectory opt fvw13 1 1 fv bi Set the path t
13. ned below Create an XDB for every 5 degrees of rotor rotation of OVERFLOW using the following process 1 OVERFLOW runs then stops saving off x brkset restart q FieldView runs in batch mode executes an fvx file fv batch fvx iso fvx which generates an xdb xdb The XDB contains 2 iso surfaces designed to highlight 2 levels of vorticity magnitude One scalar Velocity Magnitude was written out xdb is on the order of 45MB 3 OVERFLOW job restarts and it keeps going ARG 12 01 Page 14 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group www ilight com Batch CR brkset save iE gt ig FieldView zs OVERFLOW 3 Figure 10 Ilso Surface XDB Workflow Schematic Once the batch job of FieldView has complete then the series of XDB files can be transferred to a local client for interactive exploration For the present example a total of thirty five 35 xdb s were created and then transferred via sftp to a local machine The XDB files were then read as a transient dataset into interactive FieldView and then viewed as a transient dataset For more complete benchmark and explanation of this example in www ilight com Works Cited Anderson John D Hypersonic and High Temperature Gas Dynamics Reston Virginia American Institute
14. of Aeronautics and Astronautics Inc 1989 ARG 12 01 Page 15 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group
15. ons in FieldView Manual Automatic and Parallel To use Client Server the FieldView servers need to be installed on the remote server The servers may be downloaded from the Intelligent Light support page www ilight com support Follow the instructions in the user manual to install the servers Note that you DO NOT NEED to install a license server and license on the remote server FieldView uses the license served to the Client To connect via Client Server in manual mode you would select from the file pull down menu File gt Data Input gt Choose Server manual as shown in Figure 5 Then when you select the OVERFLOW2 reader from file pull down menu File gt Data Input gt OVERFLOW2 you would be presented with a pop up message the gives the command that would be entered manually on the remote server In automatic mode FieldView would connect automatically to the remote client Some configuration is required though To configure one first needs to create a passwordless login for ssh Utilize ssh keygen to create both rsa and dsa public keys i e ssh id_rsa pub amp ssh id_dsa pub and then concatenate the ARG 12 01 Page 10 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group www ilight com resulting keys to the remote server
16. s contained within the OVERFLOW q save or g 4 solution files Both the species and turbulence data becomes available as a scalar data that can be chosen like any other scalar quantity The Thermodynamic derived quantities such as Pressure Pressure Coefficient Mach number etc are computed using the formulations from Anderson Anderson 1989 The direct reader reads the OVERFLOW specific parameters NQ NQC and NQT which dictate the total number of Q variables the number of species components and the number of turbulence modeling variables present in a solution file respectively These additional parameters are printed to the console ARG 12 01 Page 4 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners intelligent Light Applied Research Group www ilight com window The following output from the FieldView console or shell window would be shown upon the successful read of an OVERFLOW 2 dataset with 2 species and a 1 equation turbulence model Figure 2 shows how the OVERFLOW functions are presented in the Function Selection panels NQ 9 NOC Q variable names Density Q1 x momentum Q2 y momentum Q3 z momentum Q4 energy Q5 gamma Q6 Stag species density 1 Q7 species density 2 Q8 turbulence model quantity 1 Q9 EE Function Selectio n Function Sele
17. sername fv_sconfig in bash or ksh setenv FV_SERVER_CONFIG_DIR home username fv_sconfig in csh or tcsh In windows you would specify the User Variable through System Properties gt Advanced gt Environment Variables as illustrated in Figure 6 Then to choose the server you would choose the server of choice as shown in Figure 7 The shared memory server config file is shown in Figure 8a In Figure 8b the parallel cluster configuration file for post processing distributed over 8 processors is ARG 12 01 Page 11 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group www ilight com shown For more details on configuring your systems for Running Client Server Mode and Running FieldView Parallel Mode see Pages 36 55 of the FVUsers_Guide pdf x System Properties Ls TCC KRUUC A Edit View Visualization Panels Tools Help Direct Ge unity i Computer Name Hardware Advanced System Protection Remote Rett Local basie parallel 5 Local licensed parallel Environment Variables pA y ARE S Server Local Windows x64 Ey Cy Save Image e Local Windows x6 Print Server Append manual Postecript Opt
18. sesedaenieae sacoesevesseasteaccecsesecasva cae 15 ARG 12 01 Page 3 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group www ilight com Tip 1 Automatically detect the file type using Use the OVERFLOW Reader If you use the OVERFLOW reader it will AUTOMATICALLY detect the file type By default FieldView attempts to auto detect the values for the FILE FORMAT COORDS and DATA FORMAT You still have the option to disable this default behavior by turning the Auto Detect Format option OFF in this case explicit setting of the file format and attributes will be required If FieldView is unable to correctly detect the file format the Auto Detect Format button will be turned off and a pop up message will appear OVERFLOW INPUT MODE Replace Merge Series Append Read XYZ Data Read Q Data Read Function Data Auto Detect Format FILE FORMAT COORDS DATA FORMAT Formatted 2 D Blanks Unformatted 3 D Multi Grid DP Unformatted Binary Figure 1 OVERFLOW 2 Reader Panel Tip 2 The OVERFLOW Reader gives you access to all of OVERFLOW s turbulence variables and thermodynamically correct derived functions The OVERFLOW 2 reader also fully supports all the species and turbulence quantitie
19. t XDB Import More Readers Append Sampled Data Figure 3 Choosing the Local basic parallel www ilight com Tip 4 Geta factor 2 speed up using brkset restart or brkset files If the brkset restart file exists in the same directory of the grid file being read FieldView will automatically use it for post processing the off body grid In this case instead of reading the near body grids and off body grids FieldView uses the brkset restart information to generate the Cartesian topology of the off body grids or bricks This operation results in a significant reduction in time required to read the grid For static grid calculations where the grids do not change in time FieldView reads the xyz coordinates of only the near body grids and the Iblanks for all the grids from the x save or a single x fora transient solution Note that although the brick topologies are static their associated IBLANK arrays may change ARG 12 01 Page 7 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners intelligent Light Applied Research Group www ilight com Tip 5 Use the automatically detected transient dataset feature to manage transient data FieldView supports the default file name conventions from OVERFLOW 2 for transient grid x and solution q data OVERFLOW 2 grid files have
20. t Server mode the FieldView Graphics Client controls a Server process which remains on a remote server The remote server process reads and post processes the data and then sends to the Graphics Client the graphics information only This method not only reduces the amount of data sent to the client but it also Edit View Visualization Panels Tools Help Data Input J Direct Unify Open Restart Local basic parallel cae eae Local licensed parallel Server Local Windows x64 a Ol A Save Image Local Windows x64 Print r Server Append manual Postscript Options Integrate RemoteServer RemoteServer_p4_8 RemoteServer_shmem AcuSolve Direct Reader AcuSolve FV UNS Export ANSYS CFX FV UNS Export CFD FV UNS Export CGNS Structured CGNS Unstructured COBALT FV UNS Export FLOW 3D Animation Data FLOW 3D Restart Data FLUENT Direct Reader FLUENT FV UNS Export FV UNS HAVOC LS DYNA State Database Direct Reader NPARC WIND Direct Reader OpenFOAM Direct Reader OpenFOAM FV UNS Export OVERFLOW 2 PLOTSD SCRYU STAR CCM FV UNS Export STAR CD FV UNS Export XDB Import More Readers Append Sampled Data Figure 5 Choosing Client Server Manual Mode allows the user to utilize the compute power large memory and remote storage Capabilities There are 3 modes for Client Server operati
21. turn on port forwarding tunneling choose true te turn on port forwarding tunneling PortForward true PortPhorward true Select the server side port number for port forwarding i Select the eT side port number for port forwarding parvarport Trey ServerPort 778 Choose communication protocol for remote shell fros client Cc Choose communication protocol for remote shell from client Remoteshell er cygwinibinssh exe f Ramoteshel l fusr bin ssh eme C i Following options are maintained for backward compability i nase_of_remote_server com SstartOirectory home epd F Following options are maintained for backward compability ian name_of_remote_server com StartOirectory home epd remote_server srv dos format 28 lines 793 characters remote server linux client srv dos format 26 lines 618 characters E n x ae SS en L e Z a Windows Client using Cygwin ssh b Linux Client using SSH Figure 5 Client Server srv file The server configuration files are installed on the client side and may be installed either in FV_HOME sconfig or in your own local directory By default FieldView will look at FV_HOME sconfig It s recommended that users maintain their own server config files defined by the Environment Variable FV SERVER _CONFIG_DIR In Linux you would simply include the following in there bashrc or cshrc files respectively export FV_SERVER_CONFIG DIR home u
22. uld then select the OVERFLOW2 reader from the Data Input panel as before To use more processors on a single workstation you would select Local licenses parallel To enable this feature you will need to purchase additional licenses There is currently 8 16 32 64 processor licenses available For some processes the user may see up to a 5x speed up with 8 processors ARG 12 01 Page 6 Intelligent Light 301 Route 17 North 7 Floor Rutherford NJ 07070 USA 1 201 460 4700 Copyright 2012 Intelligent Light All trademarks are the property of their respective owners Intelligent Light Applied Research Group FieldView lll TTT et te Edit View Visualization Panels Tools Help Open Restart Save Restart Save Image Print Postscript Options Data Input gt Direct Local basic parallel Local licensed parallel v Server nilchi_shmem gt Choose Server Server Append AcuSolve Direct Reader AcuSolve FV UNS Export ANSYS CFX FV UNS Export CFD FV UNS Export CGNS Structured CGNS Unstructured COBALT FV UNS Export FLOW 3D Animation Data FLOW 3D Restart Data FLUENT Direct Reader FLUENT FV UNS Export FV UNS HAVOC LS DYNA State Database Direct Reader NPARC WIND Direct Reader OpenFOAM Direct Reader OpenFOAM FV UNS Export OVERFLOW 2 PLOTSD SCRYU STAR CCM FV UNS Export STAR CD FV UNS Expor

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