cam5 FV dynamical core

[dan_lipsa@kitware_com]

Hi all,I am trying to read the grid data on each compute nodes for the FV dynamical core and write it out. Also, find out information about the whole grid. What is the best place to start?Also, a related question: If I am saving all attributes in the fv grid, do I get attributes from physics and chemistry modules? I am using cam-5.3 from cesm1_2_1.Thank you very much,

 

[jedwards]

HI Dan, I'm afraid that your question as written doesn't make a lot of sense to me - can you explain in more detail what you are trying to do.

 

[jedwards]

HI Dan, I'm afraid that your question as written doesn't make a lot of sense to me - can you explain in more detail what you are trying to do.

 

[jedwards]

HI Dan, I'm afraid that your question as written doesn't make a lot of sense to me - can you explain in more detail what you are trying to do.

 

[jedwards]

HI Dan, I'm afraid that your question as written doesn't make a lot of sense to me - can you explain in more detail what you are trying to do.

 

[jedwards]

HI Dan, I'm afraid that your question as written doesn't make a lot of sense to me - can you explain in more detail what you are trying to do.

 

[jedwards]

HI Dan, I'm afraid that your question as written doesn't make a lot of sense to me - can you explain in more detail what you are trying to do.

 

[dan_lipsa@kitware_com]

Hi,Thanks for your answer.My goal is to write out (or more precisely send to our ParaView Catalyst) computation data produced by cam5. For this I need to understand and access the data decomposition used by various computation modules involved.We are configuring our cam5 using: fv, cam5, trop_mam3 modules. Do each of these modules have different grid decompositions?If we want to look at the physics module (I think most of the variables in the history file come from there) what is the best place to look to understand the grid decomposition?Thank you very much,

 

[dan_lipsa@kitware_com]

Hi,Thanks for your answer.My goal is to write out (or more precisely send to our ParaView Catalyst) computation data produced by cam5. For this I need to understand and access the data decomposition used by various computation modules involved.We are configuring our cam5 using: fv, cam5, trop_mam3 modules. Do each of these modules have different grid decompositions?If we want to look at the physics module (I think most of the variables in the history file come from there) what is the best place to look to understand the grid decomposition?Thank you very much,

 

[dan_lipsa@kitware_com]

Hi,Thanks for your answer.My goal is to write out (or more precisely send to our ParaView Catalyst) computation data produced by cam5. For this I need to understand and access the data decomposition used by various computation modules involved.We are configuring our cam5 using: fv, cam5, trop_mam3 modules. Do each of these modules have different grid decompositions?If we want to look at the physics module (I think most of the variables in the history file come from there) what is the best place to look to understand the grid decomposition?Thank you very much,

 

[dan_lipsa@kitware_com]

Hi,Thanks for your answer.My goal is to write out (or more precisely send to our ParaView Catalyst) computation data produced by cam5. For this I need to understand and access the data decomposition used by various computation modules involved.We are configuring our cam5 using: fv, cam5, trop_mam3 modules. Do each of these modules have different grid decompositions?If we want to look at the physics module (I think most of the variables in the history file come from there) what is the best place to look to understand the grid decomposition?Thank you very much,

 

[dan_lipsa@kitware_com]

Hi,Thanks for your answer.My goal is to write out (or more precisely send to our ParaView Catalyst) computation data produced by cam5. For this I need to understand and access the data decomposition used by various computation modules involved.We are configuring our cam5 using: fv, cam5, trop_mam3 modules. Do each of these modules have different grid decompositions?If we want to look at the physics module (I think most of the variables in the history file come from there) what is the best place to look to understand the grid decomposition?Thank you very much,

 

[dan_lipsa@kitware_com]

Hi,Thanks for your answer.My goal is to write out (or more precisely send to our ParaView Catalyst) computation data produced by cam5. For this I need to understand and access the data decomposition used by various computation modules involved.We are configuring our cam5 using: fv, cam5, trop_mam3 modules. Do each of these modules have different grid decompositions?If we want to look at the physics module (I think most of the variables in the history file come from there) what is the best place to look to understand the grid decomposition?Thank you very much,

 

[hannay]

I assume your are talking about the grid for CAM (the atmospheric model). The grid is set when you invoke the create_newcase command.create_newcase -case [case name]
-mach [machine name]
-compset [compset name]
-res [resolution]

Information about the supported is in:
http://www.cesm.ucar.edu/models/cesm1.2/cesm/doc/modelnl/grid.htmlFor CAM, you have teh choice between different dynamicla core and resolution.If you want to see the grid once you have created a case, you could look at the initial condition files.
Look for the variable "ncdata" in the CAM namelist (atm_in), it will point you to the initial file      

 

[hannay]

I assume your are talking about the grid for CAM (the atmospheric model). The grid is set when you invoke the create_newcase command.create_newcase -case [case name]
-mach [machine name]
-compset [compset name]
-res [resolution]

Information about the supported is in:
http://www.cesm.ucar.edu/models/cesm1.2/cesm/doc/modelnl/grid.htmlFor CAM, you have teh choice between different dynamicla core and resolution.If you want to see the grid once you have created a case, you could look at the initial condition files.
Look for the variable "ncdata" in the CAM namelist (atm_in), it will point you to the initial file      

 

[hannay]

I assume your are talking about the grid for CAM (the atmospheric model). The grid is set when you invoke the create_newcase command.create_newcase -case [case name]
-mach [machine name]
-compset [compset name]
-res [resolution]

Information about the supported is in:
http://www.cesm.ucar.edu/models/cesm1.2/cesm/doc/modelnl/grid.htmlFor CAM, you have teh choice between different dynamicla core and resolution.If you want to see the grid once you have created a case, you could look at the initial condition files.
Look for the variable "ncdata" in the CAM namelist (atm_in), it will point you to the initial file      

 

[hannay]

I assume your are talking about the grid for CAM (the atmospheric model). The grid is set when you invoke the create_newcase command.create_newcase -case [case name]
-mach [machine name]
-compset [compset name]
-res [resolution]

Information about the supported is in:
http://www.cesm.ucar.edu/models/cesm1.2/cesm/doc/modelnl/grid.htmlFor CAM, you have teh choice between different dynamicla core and resolution.If you want to see the grid once you have created a case, you could look at the initial condition files.
Look for the variable "ncdata" in the CAM namelist (atm_in), it will point you to the initial file      

 

[hannay]

I assume your are talking about the grid for CAM (the atmospheric model). The grid is set when you invoke the create_newcase command.create_newcase -case [case name]
-mach [machine name]
-compset [compset name]
-res [resolution]

Information about the supported is in:
http://www.cesm.ucar.edu/models/cesm1.2/cesm/doc/modelnl/grid.htmlFor CAM, you have teh choice between different dynamicla core and resolution.If you want to see the grid once you have created a case, you could look at the initial condition files.
Look for the variable "ncdata" in the CAM namelist (atm_in), it will point you to the initial file      

 

[hannay]

I assume your are talking about the grid for CAM (the atmospheric model). The grid is set when you invoke the create_newcase command.create_newcase -case [case name]
-mach [machine name]
-compset [compset name]
-res [resolution]

Information about the supported is in:
http://www.cesm.ucar.edu/models/cesm1.2/cesm/doc/modelnl/grid.htmlFor CAM, you have teh choice between different dynamicla core and resolution.If you want to see the grid once you have created a case, you could look at the initial condition files.
Look for the variable "ncdata" in the CAM namelist (atm_in), it will point you to the initial file      

 

[santos]

We are configuring our cam5 using: fv, cam5, trop_mam3 modules. Do each of these modules have different grid decompositions?Just to clarify for this specific question, the answer is almost always no. For any specific run, it is safe to say only one grid is used by the whole atmosphere model, including physics, chemistry, and dynamics. This will probably not be true in the future, since the dynamics and column physics grids may be different in the future, and because of new and proposed features involving subcolumns and SPCAM that require a somewhat expanded concept of what the "grid" means. But for standard runs up through right now, you can assume that basically all of CAM is working on the same grid as is specified when you create the case, which should be the same as what's in the initial conditions file (ncdata).(Also, "cam5" is not really a distinct module or package per se. It is more like a shorter way of saying "CAM with trop_mam3 as the aerosol/chemistry and RRTMG as the radiation and TKE as the PBL scheme and Park's macrophysics and MG microphysics and ZM deep convection and UW shallow convection and..." This standard combination is the most common and supported one, and is thus defined in the user interface, but it is often possible, though not supported by us, to mix and match pieces between CAM4, CAM5, and physics packages that are not part of any standard configuration.)