MemoryError - low priority

[djohnsonbaugh]

CVXPY seemed to have run out of memory when I attempted the whole model (reduced)

Stations (Group & Net) - 29,549
Lines - 42,283
Units - 6,541
Fixed Load - 37,546

This may not be easily remedied, but good to know we have this limitation now.

Traceback (most recent call last):
File "main.py", line 698317, in
network.problem.solve()
File "C:\Program Files (x86)\Python35-32\lib\site-packages\dem\network.py", line 163, in problem
return sum(x.problem for x in self.devices + self.nets)
File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 569, in add
list(set(self.constraints + other.constraints)))
File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 78, in init
self.size_metrics = SizeMetrics(self)
File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 671, in init
for const in problem.constants()+problem.parameters():
File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 159, in constants
const_dict = {id(constant): constant for constant in constants}
File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 159, in
const_dict = {id(constant): constant for constant in constants_}
MemoryError

[mwytock]

Interesting, indeed a large problem. If you could share a script for this problem or a similarly large random problem that hits the same limit that would be helpful... On Mar 8, 2017 5:40 PM, "DeWayne Johnsonbaugh" <notifications@github.com> wrote: CVXPY seemed to have run out of memory when I attempted the whole model (reduced) Stations (Group & Net) - 29,549 Lines - 42,283 Units - 6,541 Fixed Load - 37,546 This may not be easily remedied, but good to know we have this limitation now. Traceback (most recent call last): File "main.py", line 698317, in network.problem.solve() File "C:\Program Files (x86)\Python35-32\lib\site-packages\dem\network.py", line 163, in problem return sum(x.problem for x in self.devices + self.nets) File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 569, in *add* list(set(self.constraints + other.constraints))) File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 78, in *init* self. *size_metrics = SizeMetrics(self) File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 671, in init for const in problem.constants()+problem.parameters(): File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 159, in constants const_dict = {id(constant): constant for constant in constants* } File "C:\Program Files (x86)\Python35-32\lib\site-packages\cvxpy\problems\problem.py", line 159, in const_dict = {id(constant): constant for constant in constants_} MemoryError — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#5>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAkH1n0LkVrDcNo_LJvG1bS88MWGFbRrks5rj1iQgaJpZM4MXiie> .

[djohnsonbaugh]

I will make available an encrypted file shortly, rather not post that publicly.

[djohnsonbaugh]

Should i reinstall a 64bit version of Python and all libraries? Would that help?

[mwytock]

You could try, more memory is always good. It looks like its hitting a limit on the python side rather than in the underlying C libraries for the solver but I'd have to take a closer look to see whats actually going on before being able to say if that would actually help.

…

On Thu, Mar 9, 2017 at 8:19 AM, DeWayne Johnsonbaugh < ***@***.***> wrote: Should i reinstall a 64bit version of Python and all libraries? Would that help? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#5 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAkH1lYkYNVHe4QElYkhVetEGcna9Dokks5rkCaLgaJpZM4MXiie> .