maher243 / blocksim Goto Github PK

Hi, I am getting ImportError: No module named Models.Ethereum.Node when I run python InputsConfig.py

The code " t= tx" would not copy tx to t, it means that t and tx are the same object in python. Hence, the "t.timestamp[1] = t.timestamp[1] + Network.tx_prop_delay() " would change the value "tx.timestamp[1]" and the code "t.timestamp[1] = t.timestamp[1] + Network.tx_prop_delay() " would make a bug that the delay of the transaction wuld be more and mode big.
I think that the code " t= tx" should be written as t= copy.deepcopy(tx).

Hi, glad to see ur repo.
Now I'm building a smart grid in theory and I saw ur project can help me benchmark our parameters before deploy.

But after few time, I saw something should be separated that is difficulty and blocktime interval.
As I understood, in yellow paper and Geth source, Difficulty is flexible param which changed block by block to ensure block interval inside 10-15s. This time helps 95% of nodes reach a new mined block.

But in ur code, I saw blocktime and difficulty is merged to Binterval. That oke in simulation but I wanna "fixed" Difficulty of a private network so I need a individual value.

Now I could change Binterval and found out good value for ur setup but rather hard to make a decision that good or not because a lot of propability change anytime I restart BlockSim.

Thx, for reading!

I try to conduct experimential like wise in your paper. when i set input model =1 👍
Configuration like: Binterval=600 # Average time (in seconds)for creating a block in the blockchain
Bsize = 1.0 # The block size in MB
Bdelay =2 # average block propogation delay in seconds, #Ref: https://bitslog.wordpress.com/2016/04/28/uncle-mining-an-ethereum-consensus-protocol-flaw/
Breward = 12.5 # Reward for mining a block

    ''' Transaction Parameters '''
    hasTrans = True  # True/False to enable/disable transactions in the simulator
    Ttechnique = "Light"  # Full/Light to specify the way of modelling transactions
    Tn = 10  # The rate of the number of transactions to be created per second
    # The average transaction propagation delay in seconds (Only if Full technique is used)
    Tdelay = 5.1
    Tfee = 0.000062  # The average transaction fee
    Tsize = 0.000546  # The average transaction size  in MB

    ''' Node Parameters '''
    Nn = 5  # the total number of nodes in the network
    NODES = []
    from Models.Bitcoin.Node import Node
    # here as an example we define three nodes by assigning a unique id for each one + % of hash (computing) power
     **NODES = [Node(id=0, hashPower=40), Node(
        id=1, hashPower=30), Node(id=2, hashPower=15),Node(id=3, hashPower=10),Node(id=4, hashPower=5)]**

    ''' Simulation Parameters '''
    simTime = 1000  # the simulation length (in seconds)
    Runs = 10  # Number of simulation runs

I got error like these 👍

File "/home/quyet/PycharmProjects/BlockSim/BlockSim/Main.py", line 66, in main
Consensus.fork_resolution() # apply the longest chain to resolve the forks
File "/home/quyet/PycharmProjects/BlockSim/BlockSim/Models/Bitcoin/Consensus.py", line 43, in fork_resolution
z = np.bincount(c)
File "<array_function internals>", line 200, in bincount
TypeError: int() argument must be a string, a bytes-like object or a number, not 'NoneType'

Process finished with exit code 1

Still i get the results in excel file : like stale rate =0; number transaction :3, total transaction :5404; unexpected % mainblock decentralised ; I means same set up as in table 5 of your paper but can get expected results.

Last point
How do you calculate throughput when put model =0 or model=1; as i see no throughput has been put in excel output file

Is it possible to edit the consensus algorithm and write in your own for testing ?

Hi Maher,

I am trying to run BlockSim and I run into a few bugs... but it's very probably because I don't know what I'm doing...

I set the model to 0 in InputsConfig.py.

I tried to run Main.py, but I got the following error:

File "/Users/dimarcom/Documents/blockchain/par les copains/BlockSim-master/Statistics.py", line 38, in blocks_results
Statistics.staleRate= round(Statistics.staleBlocks/Statistics.totalBlocks * 100, 2)
ZeroDivisionError: division by zero

So I opened statistics.py and changed the following line:

totalBlocks=0 --to--> totalBlocks=10

thinking it would create a chain composed of 10 blocks.

Then I ran again Main.py, and I got:

File "/Users/dimarcom/PycharmProjects/blockchain/venv/lib/python3.9/site-packages/pandas/core/internals/base.py", line 69, in _validate_set_axis
raise ValueError(
ValueError: Length mismatch: Expected axis has 0 elements, new values have 7 elements

... and I have to prepare my classes for next week, so I stopped there ;)

I'll come back to it soon enough I hope.