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| Date | Tue, 10 Jun 2014 02:12:38 -0700 (PDT) |
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| Subject | Is this sort of a constraint implementable in Python? |
| From | varun7rs@gmail.com |
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Hello Everyone,
I'm working on a python code to input matrices into CPLEX solver. I have most of my code running fine but as of now, I don't know how to express this constraint. My objective is to minimize the number of nodes. I have got one of the weirdest looking constraints which I don't know how to express in Python because python basically takes matrices and inputs them into cplex. My constraint is as below. This was what I wrote in AMPL
minimize phy_nodes: sum {w in PHY_NODES} x_ns[w] ;
s.t. Phy_nodes_Eq{w in PHY_NODES, dns in DEMAND}:
x_ns[w] = 1 ==> x_SGW[dns, w] + x_PGW[dns, w] + x_MME[dns, w] + x_IMS[dns, w] + x_PoP[dns, w] >= 1
else x_SGW[dns, w] + x_PGW[dns, w] + x_MME[dns, w] + x_IMS[dns, w] + x_PoP[dns, w] = 0;
Could you help me fix this problem?
Thank You
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Is this sort of a constraint implementable in Python? varun7rs@gmail.com - 2014-06-10 02:12 -0700 Re: Is this sort of a constraint implementable in Python? Gary Herron <gary.herron@islandtraining.com> - 2014-06-10 13:06 -0700
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