We must to establish a market price for TRU, relative to the true cost of electricity per CPU cycle, in order to price a task. I believe that the Task Giver sets the price in the current implementation, but we'll need to enforce a lower bound on mainnet because underpricing a task eliminates the incentive for verification. In the long run, the task pricing mechanism must be decentralized.
@teutsch Thank you for your explanation! Let me repeat it again. If there is a problem with my understanding, please point it out. In general, it is similar to "the market" in the economics which determines the price of commodity. Ideally, all participants, including Task Givers and Solvers in Truebit, will agree on the price of per CPU cycle, which is somewhat similar to gasPrice in Ethemum which floats around 8 Gwei. However, it seems the computational capacity still is bounded, since the total TRU consumption is related to the total CPU cycle used. is it somewhat similar to the gas in Ethereum?
And one more question, is there any tools can tell me how much CPU cycle a task will take?
The payment does come from the jackpot, but the jackpot is funded by the Task Giver. The Task Giver pays the Verifiers' expected reward so that the expected capital in the Jackpot Repository tends toward a constant over time. If tasks would be free to the Task Giver, this would probably induce spam. Then Verifiers could issue tasks that they already knew the answers to and get rich from solving them without doing any work. In this scenario, there is then little incentive to instead perform "real" tasks that involve actual work.
In my understanding, what a Task Giver have to pay are 1) the reward for solving task, 2) the tax to be added into jackport repository. The reward must higher than the indeed cost of a task which is metered by CPU cycle of the task. The tax is for 1) maintaining the jackport repository in a constant value, 2) preventing some attacker from spamming. We believe that the price of per CPU cycle will be a reasonable price, compared with gasPrice in Ethereum, thus we can say the execution of complex task in Truebit is much more cheaper than in Ethereum.
In my paper, I want to convince the reviewers that the cost of computation can be indeed reduced through Truebit, but I have no ideas to prove it... Could you give me some advice? Is it feasible to measure the task execution time and estimate the amount of money that this task might cost with the unit price of cloud computing, like Amazon EC2?
@mrsmkl may be able to give you some benchmarks on the overhead for the new JIT compiler vs. native code. Truebit JIT might be less expensive than EC2, however EC2 probably has better performance. Do you have any specific tasks you'd like to run on EC2, and can you estimate their dollar costs?
Sorry for my bad expression. What I mean is I want to prove the gas consumption in Ehtereum can be reduced through Truebit. Currently, the execution of my smart contract costs about 30 million gas, which is very infeasible. I want to give a proof that the money for executing a task is cheaper. So I wander can I use the unit price of EC2 to measure how much a Truebit task might cost, since we don't know the price of a CPU cycle currently, and the price of EC2 looks like a acceptable standard.
sometimes it's possible to collect several tasks into a batch, then the transaction costs will not increase
Hi Team,
Could you please enable github issue for below repository. I wanted to initiate a discussion on the repository.
https://github.com/TrueBitFoundation/eth-patricia
Thanks
please test the latest docker image: https://github.com/TrueBitFoundation/truebit-os#running-on-docker ... trying to have a stable version now that can be used for developing Truebit tasks
also check new guide here https://github.com/TrueBitFoundation/wasm-ports/blob/v2/samples/scrypt/README.md
hello everyone. I have been watching this project grow and develop for a few years now, but for the life of me I can't figure out how to invest or become a verifier or get involved at all. I know nothing about programming in blockchain, I'm just a regular guy that's been watching cryptos for a few years and know that this is an important project. Any tips? Plans to meet in Denver again?? Thanks :)
Hi @KadiumRA Looking forward to meeting on Monday.
To get started:
1- Download Docker- https://www.docker.com/
2- Open your terminal
3- Start up the docker image with this command docker run --rm -ti mrsmkl/wasm-ports:19-04-02 /bin/bash
*This may take a little while to download. Be patient ;)
4- Start Truebit environment cd truebit-os
sh scripts/start-private.sh
5- Truebit-OS client for Goerli works inside of Docker. Use this command to enter the client there: npm run truebit
6 - Try and generate a task with the command task
7- You can solve others' tasks with command start solve
Let me know how that goes. see you soon
Jessica
@tesla809 Yoyo! get Truebit running on your computer. I can go to the meetup on Monday and we can play around! Check the instructions above ↑↑↑
Hi, I´ve installed Truebit OS from Source like it´s explained here: https://github.com/TrueBitFoundation/truebit-os
I claimed some tokens, started a solver and a taskgiver and tried to submit the task testWasmAlphabet with the command "task -a 0 -t testWasmAlphabet.json", but while executing I get an error.
Here is the screenshot of the Error: https://imgur.com/a/5DWIEgm
Is there something i have todo first, before submitting this task?
I´m thankfull for every help i can get :)
I claimed some tokens, started a solver and a taskgiver and tried to submit the task testWasmAlphabet with the command "task -a 0 -t testWasmAlphabet.json", but while executing I get an error.
Here is the screenshot of the Error: https://imgur.com/a/5DWIEgm
Is there something i have todo first, before submitting this task?
I´m thankfull for every help i can get :)
we'll need to clarify the messages somehow
It says "SOLVER: Revealed correct solution" and "SOLVER: Finalized task"
But where can i find the solutions of the task?
There is nothing in the solutions folder.
It also generates a folder "tmp.solver_o2eabqlu1vo0" which contains the WASM code, alphabet.txt, reverse_alphabet.txt, alphabet.txt.out and reverse_alphabet.txt.out, but both reverse_alphabet files are empty.
But where can i find the solutions of the task?
There is nothing in the solutions folder.
It also generates a folder "tmp.solver_o2eabqlu1vo0" which contains the WASM code, alphabet.txt, reverse_alphabet.txt, alphabet.txt.out and reverse_alphabet.txt.out, but both reverse_alphabet files are empty.