"""An experiment for joint UFLP + special instance type
The aim was to figure out an instance class to highlight
the possible benefits of the proposed (full-DD-based)
pipeline.
"""
from jUFLP_cavemen import gen_cavemen_jUFLP_inst, solve_cm_jUFLP_MIP
from jUFLP_cavemen import gen_cavemen_jUFLP_inst, solve_cm_jUFLP_MIP
from jUFLP_cavemen import solve_cm_jUFLP_CPPMIP_fullDDs
from jUFLP_cavemen import save_inst, solve_cm_jUFLP_fullDDs
from time import time
[docs]def main():
print("experiment, n, M, L, N, A, tMIP, tMIP_CPP, tDD_VS, int_VS")
M = 6
L = 0.35
n = 10
for i in range(1, 100 + 1):
i1, i2, jm = gen_cavemen_jUFLP_inst(n, M, L, linking="consecutive")
# save_inst(i1, i2, jm, f"instances/jUFLP/inst_{i}.json")
print("---")
t0 = time()
objMIP = solve_cm_jUFLP_MIP(i1, i2, jm)
tMIP = time() - t0
print(f"✅ MIP in {tMIP:.2f} sec", flush=True)
# solve with CPP MIP
t0 = time()
objMIP_CPP = solve_cm_jUFLP_CPPMIP_fullDDs(i1, i2, jm)
tMIP_CPP = time() - t0
print(f"✅ CPP MIP in {tMIP_CPP:.2f} sec", flush=True)
t0 = time()
objDD3, int_VS = solve_cm_jUFLP_fullDDs(i1, i2, jm, "VS", True)
tDD_VS = time() - t0
print(f"✅ Full DDs VS in {tDD_VS:.2f} sec", flush=True)
assert abs(objMIP - objMIP_CPP) < 0.01, f"objMIP = {objMIP:.2f}, objMIP_CPP={objMIP_CPP:.2f}"
assert abs(objMIP - objDD3)< 0.01, f"objMIP = {objMIP:.2f}, objDD3={objDD3:.2f}"
A = sum([len(s)-1 for s in i1[0]])/2+sum([len(s)-1 for s in i2[0]])/2
print(f"{i}, {n}, {M}, {L}, {len(i1[0])+len(i2[0])}, {A}, {tMIP:.2f}, {tMIP_CPP:.2f}, {tDD_VS:.2f}, {int_VS}", flush=True)
if __name__ == '__main__':
main()