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Adding the option to solve concurrently for all regions in MACRO #808

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Adding the option to solve concurrently for all regions in MACRO #808

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66789c3
Update MESSAGE-MACRO_run.gms
daymontas1 Mar 22, 2024
69fb07a
Update macro_solve.gms
daymontas1 Mar 22, 2024
c517d17
Merge branch 'iiasa:main' into macro_update
daymontas1 May 3, 2024
1beede5
Update macro_data_load.gms
daymontas1 May 3, 2024
b7a9eea
Update MESSAGE-MACRO_run.gms
daymontas1 May 3, 2024
376e97f
Merge branch 'iiasa:main' into macro_update
daymontas1 May 7, 2024
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5 changes: 4 additions & 1 deletion message_ix/model/MACRO/macro_data_load.gms
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,10 @@ Sets
;

* parameters specific to MACRO

*setting solve_param to 1 (the default values) triggers sequential solving across regions in MACRO, whereas setting it to 2 enables concurrent solving for all regions
SCALAR solve_param solving mechanism for MACRO
/ 1 /
;
SCALAR node_counter 'node counter for looping over regions' ;

SCALAR epsilon small number to avoid divergences
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38 changes: 20 additions & 18 deletions message_ix/model/MACRO/macro_solve.gms
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Expand Up @@ -38,30 +38,32 @@ C.FX(node_macro, macro_base_period) = c0(node_macro) ;
I.FX(node_macro, macro_base_period) = i0(node_macro) ;
EC.FX(node_macro, macro_base_period) = y0(node_macro) - i0(node_macro) - c0(node_macro) ;

* ------------------------------------------------------------------------------
* Conditional execution based on solve_param
if (solve_param = 1,
* solving the model region by region
* ------------------------------------------------------------------------------

node_active(node) = no ;

LOOP(node $ node_macro(node),

node_active(node_macro) = no ;
node_active(node) = YES;
* DISPLAY node_active ;

* ------------------------------------------------------------------------------
node_active(node) = no ;
LOOP(node $ node_macro(node),
node_active(node_macro) = no ;
node_active(node) = YES;
* DISPLAY node_active ;
* solve statement
* ------------------------------------------------------------------------------

SOLVE MESSAGE_MACRO MAXIMIZING UTILITY USING NLP ;

SOLVE MESSAGE_MACRO MAXIMIZING UTILITY USING NLP ;
* write model status summary (by node)
* status(node,'modelstat') = MESSAGE_MACRO.modelstat ;
* status(node,'solvestat') = MESSAGE_MACRO.solvestat ;
* status(node,'resUsd') = MESSAGE_MACRO.resUsd ;
* status(node,'objEst') = MESSAGE_MACRO.objEst ;
* status(node,'objVal') = MESSAGE_MACRO.objVal ;

)
elseif (solve_param = 2),
*Solving model with all regions concurrently
node_active(node_macro) = YES;
* solve statement
SOLVE MESSAGE_MACRO MAXIMIZING UTILITY USING NLP;
* write model status summary
* status('all','modelstat') = MESSAGE_MACRO.modelstat;
* status('all','solvestat') = MESSAGE_MACRO.solvestat;
* status('all','resUsd') = MESSAGE_MACRO.resUsd;
* status('all','objEst') = MESSAGE_MACRO.objEst;
* status('all','objVal') = MESSAGE_MACRO.objVal;
) ;

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