MPI troubles.

[Chroma]

I am going to get 5 computers from my school. Why five? HPC cluster. Why HPC cluster? So I feel smart and that I'm actually doing something with my life. Anyways, they're just a bunch of 2012-2014 boxes. I know about clustering to receiving the computers because of some late night essay research. Unfortunately, I only know Python (not that its bad or anything) and must use MPI4PY (isn't actually a problem either, its just a lack of options on my end). For the last few days I've been trying to organize data sent to the master into a dictionary, with the the name of the node associated with the GFLOPs of the node (I know this isn't the best way to determine how good a given computer is, but I'm lazy). My idea is to create a one entry dictionary for on each node and send that to the master node which updates() it to the master dictionary. But, I can't figure out how to recv the data.

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from mpi4py import MPI import time   comm = MPI.COMM_WORLD #i dont wanna type alot rank = comm.rank #i dont wanna type alot size = comm.size #you know me :) slavenodes = {} #this is so i can gather and store node and their FLOPS stat = {} #one entry dict sent gathered from each node and merged with the slavenodes dictionary for workload distribution.   print ("My rank is: ", rank)           if comm.rank == 0: #grab one entry dictionary, add to master dictionary     while len(slavenodes) < size:         g = comm.gather(stat, root=0)         slavenodes.update(g)     print(slavenodes) else: #calculate GFLOPS, create one entry dictionary with rank and GFLOPS, and send it to Master.     float_increment = 1.03 #random     start = 57.24 #random     floating_point = start #reusing variables     start = time.time() #start time     for i in range(10 ** 6):         floating_point += float_increment     end = time.time() #end time     seconds = end - start     giga = 10 ** 6     flops = giga / seconds     print ("I can run at", str(flops),"FLOPS. Actually, because Python is pretty slow, it is probably much more.")     node = rank     stat[node] = flops     #comm.send(stat, dest=0,)     print(stat)

I need GFLOPS and node rank because I plan to distribute workloads based on GFLOPS.