fix bond/create with GPU build

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1

Hello,

I have compiled LAMMPS-10Aug2015 with GPU support, and I want to perform cross-linking by using “fix bond/create”. However, I get the following error at the “fix bond/create” input script line with the GPU build: ERROR: Unknown fix style (…/modify.cpp:782).

I have performed identical simulations with other recent (non-GPU) builds of LAMMPS, and the fix is recognized and executed properly. Also, the GPU build seems to do just fine with input scripts that do not contain this “fix bond/create” command. Any ideas as to why this might be happening? Thank you for your time.

2

Assuming you are speaking of the GPU package, it adds GPU versions

of many pair styles (and PPPM). But it has nothing to do with fixes.

I can’t think of any reason a build of LAMMPS with the GPU package

would exclude some fix.

You can type lmp_machine -h to see the list of fixes that exe knows

about. Can you show a build sequence where building w/ or w/out the

GPU package includes/excludes fix bond/create?

Steve

3

Hello,

I have compiled LAMMPS-10Aug2015 with GPU support, and I want to perform
cross-linking by using "fix bond/create". However, I get the following
error at the "fix bond/create" input script line with the GPU build: ERROR:
Unknown fix style (../modify.cpp:782).

I have performed identical simulations with other recent (non-GPU) builds
of LAMMPS, and the fix is recognized and executed properly. Also, the GPU
build seems to do just fine with input scripts that do not contain this
"fix bond/create" command. Any ideas as to why this might be happening?
Thank you for your time.

​the most likely explanation is that your GPU build​ doesn't include the MC
package, whereas the non-GPU build includes it. fix bond/create is an
optional component and such components will not be included in an
executable unless the corresponding package is installed prior to
compilation.

axel.

4

After building 2 versions of LAMMPS, one with a gpu package and one without, I realize the included/excluded packages are consistent across both versions. MC is not automatically included, but after I added it, the GPU version is working just fine. Thank you for your feedback.