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Usage

It is quite easy to use ACGui.

Launch ACGui

Suppose that the ACGui is placed in the folder /home/your_home/acgui, then we should execute the following command in the terminal to launch the server side of ACGui:

$ pwd
/home/your_home/acgui
$ ./util/acg.jl
[ Info: Listening on: 127.0.0.1:8848, thread id: 1

Next, we can use any favourite web browsers (such as Chrome, Edge, or Firefox) to open the following URL:

http://127.0.0.1:8848

This is the client side of ACGui.

Prepare input data

  • Select the Data tab.
  • Click Drag and Drop or Select Files.
  • Choose a appropriate file that contains the necessary data.
  • Click Open in the pop-up dialogue box.

After a few seconds, the data will be uploaded to the server side. Note that the data file will be stored in the working directory in the server side.

data.png

Figure 1 | The Data tab in ACGui.

General setup

  • Select the General tab.
  • Fix filename for input data by finput.
  • Choose suitable analytic continuation solver by solver.
  • Fix other parameters if necessary.

general.png

Figure 2 | The General tab in ACGui.

Analytic continuation solver

  • Select the Solver tab.
  • Customize the parameters for the chosen solver.

solver.png

Figure 3 | The Solver tab in ACGui.

Run

  • Select the Run tab.
  • Click Start Analytic Continuation to start calculation. After a few seconds or minites or hours (it depends on the solver you used), the spectrum will be shown in the bottom of this tab.
  • Click Get ac.toml only to download the generated ac.toml file. Later you can modify it and start analytic continuation calculation manually.
  • Click Check err.out to check the err.out file if available. If ACFlow encounters something wrong, it will write the error message into err.out.

run.png

Figure 4 | The Run tab in ACGui.

Warning

To make ACGui works correctly, you have to make sure ACFlow and ACGui are installed correctly, or the relevant environment variables (I mean ACFLOW_HOME and ACGUI_HOME) are set correctly.

Info

The MaxEnt and BarRat solvers are highly efficient. So we can see the analytic continuation results very soon. However, the other stochastic solvers are quite slow. It is not a good idea to launch them directly through ACGui. We usually use ACGui to generate a valid ac.toml. Then we can submit the computational job manually.

Warning

Now ACGui does not support parallel calculation. In other words, you can not execute the StochAC, StochSK, StochOM, and StochPX solvers with multiple processors at the same time.