Messages

1

Main Program Usage / Regarding delta funciton for the interaction.

« on: March 21, 2018, 08:38:41 AM »

HI. I'm currently delta function as an interaction.

I found that the numerical data is not identical with the analytic one.

For that reason, I wonder how the program approximates delta function.

1. How does the program approximate the Delta function?

2. Does the method have any difference between the analytic delta function?

3. How can I reduce the difference between the analytic delta function and the delta function in the MCTDH-X program?

2

Analysis Program Usage / Memory errors when Phase, Gradient = .T.

« on: November 27, 2017, 10:45:18 AM »

Hi,
Recently, I'm using the program in 1D.

When I run the analysis program, I found that the program gives several memory errors.

I wanted to find it myself, but I can't do it because I don't understand the program structure yet.

Would you give me any suggestion about these issues?



Error Messages are followings

(1) Memory Corruption
Before phase: T T F
*** Error in 'MCTDHX_analysis_gcc' : malloc(): memory corrupton: 0x~~~~~
======

(2) Memory Free (At the same place with (1))
free(): Invalid next size (fast): 0x~~

3

Main Program Usage / Estimation of Memory in Relaxation.

« on: November 27, 2017, 10:31:03 AM »

Hello, I joined this community 2 months ago.

I'm wondering how to estimate the memory capability of the computation.

When I run relaxation program, It seems that it mainly depends on the value (N+M-1 over N).

But the allocated memory scale grows much faster than that when I changed N and M values.

When other parameters are fixed, how does the allocated memory size depend on M and N?