Build AMG.sln successfully, but can't debug.AND How can I choose different matrix and algorithm? about amgx

[ningjiafei]

I debug the project amgx_capi,then shows:

Usage: ./amgx_capi [-mode [hDDI | hDFI | hFFI | dDDI | dDFI | dFFI]] [-m file] [-c config_file] [-amg "variable1=value1 ... variable3=value3"]
-mode: select the solver mode
-m file: read matrix stored in the file
-c: set the amg solver options from the config file
-amg: set the amg solver options from the command line
请按任意键继续. . .

I can't do anything

[ningjiafei]

DONE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

PS E:\AMGXmaster\lib> examples/amgx_capi -m ../examples/matrix.mtx -c ../core/configs/FGMRES_AGGREGATION.json
AMGX version 2.0.0.130-opensource
Built on Mar 15 2019, 14:36:31
Compiled with CUDA Runtime 9.0, using CUDA driver 9.1
Warning: No mode specified, using dDDI by default.
Reading data...
RHS vector was not found. Using RHS b=[1,鈥?1]^T
Solution vector was not found. Setting initial solution to x=[0,鈥?0]^T
Finished reading
AMG Grid:
Number of Levels: 1
LVL ROWS NNZ SPRSTY Mem (GB)
--------------------------------------------------------------
0(D) 12 61 0.424 8.75e-07
--------------------------------------------------------------
Grid Complexity: 1
Operator Complexity: 1
Total Memory Usage: 8.75443e-07 GB
--------------------------------------------------------------
iter Mem Usage (GB) residual rate
--------------------------------------------------------------
Ini 0.730985 3.464102e+00
0 0.730985 1.619840e-14 0.0000
--------------------------------------------------------------
Total Iterations: 1
Avg Convergence Rate: 0.0000
Final Residual: 1.619840e-14
Total Reduction in Residual: 4.676075e-15
Maximum Memory Usage: 0.731 GB
--------------------------------------------------------------
Total Time: 0.0197452
setup: 0.00148221 s
solve: 0.018263 s
solve(per iteration): 0.018263 s

[pyramidpoint]

How to solve this problem

[pyramidpoint]

[marsaev]

@pyramidpoint it's possible that windows interprets backslashes as special characters. Try specify path to the configuration in OS-canonical way.

[pyramidpoint]

@pyramidpoint Windows可能会将反斜杠解释为特殊字符。尝试以OS-canonical方式指定配置的路径。
thank you

[marsaev]

What GPU do you have?
Which AMGX configuration is it?
Can you try running AMGX solver on sample matrix https://github.com/NVIDIA/AMGX/blob/master/examples/matrix.mtx

[pyramidpoint]

@marsaev on a 2060 rtx, with VS 2015, CMake 3.4.2,win10 and CUDA TK 9.0.I run AMGX solver on sample matrix before.But the above error occurred

[ningjiafei]

What GPU do you have?
Which AMGX configuration is it?
Can you try running AMGX solver on sample matrix https://github.com/NVIDIA/AMGX/blob/master/examples/matrix.mtx

I can solve the sample and other matrices. You may pay attention to the path of .json and .mtx.

[pyramidpoint]

I changed the path a little bit but it doesn't feel like that's the reason

[marsaev]

@pyramidpoint can you set environment variable CUDA_LAUNCH_BLOCKING=1 and try running same command again?

[pyramidpoint]

@marsaev I am working on my graduation project. Could you please add my qq or other contact information
and I have some other questions .Thank you!
My qq :1209294961

[pyramidpoint]

@marsaev @ningjiafei same mistake

[pyramidpoint]

@marsaev hi,I have another question,Why is my maximum memory usage equal to 0

[pyramidpoint]

@marsaev Hi,my "AMG" solver can't work ,I want know the reason,

[marsaev]

@marsaev hi,I have another question,Why is my maximum memory usage equal to 0

Maximum memory usage is calculated only when multigrid is used. I would assume you are not using multigrid in the mentioned config.

[marsaev]

@marsaev Hi,my "AMG" solver can't work ,I want know the reason,

What exact issue do you see?

[marsaev]

Closing due to inactivity