Pairstyle MEAM is not recognising in LAMMPS-ICMS

Hello everyone,
I am using LAMMPS on RHEL installed by YUM repository. I am running following script:-

pair_style meam/c
pair_coeff * * library.meam Ni Ti NiTi.meam Ni Ti
neigh_modify delay 5
variable T_I equal 1865
timestep 0.002

But it is showing error:- Unknown pair style meam/c (src/force.cpp : 262)
last command: Pair_style
Please give me some suggestions, how to tackle this error.
Thanks and regards.
Sandeep

Hello everyone,
I am using LAMMPS on RHEL installed by YUM repository. I am running following script:-

please let us know which yum repository and the exact LAMMPS version
you are using.

LAMMPS-ICMS has been discontinued several years ago, so it cannot
contain the USER-MEAMC package as that is newer.
recent versions of LAMMPS are available as RPMs for RHEL/CentOS via EPEL.

axel.

Thanks for your response sir.
Exact version is lammps-20181212-1.el7.x86_64.rpm.

Thanks for your response sir.
Exact version is lammps-20181212-1.el7.x86_64.rpm.

that means, it *cannot* be a LAMMPS-ICMS version. you didn't say which
repository this was taken from and who compiled and packaged it.
you can pull up this information with: rpm -qi lammps

you may be able to use "pair_style meam" instead of "pair_style
meam/s", but for quite a while, the LAMMPS developers have discouraged
the use of the MEAM package and encouraged people to use the
USER-MEAMC package (which provides "meam/c" instead of "meam"). as of
LAMMPS version 4 Jan 2019 package MEAM (and REAX) have been removed
from the LAMMPS source code distribution.

to get access to the meam/c pair style you either need to compile your
own LAMMPS binary from source or contact the packager of the RPM
package you are using and ask for an updated version with the
USER-MEAMC package included. packaging of pre-compiled LAMMPS binaries
is contributed by various people (on a voluntary basis) and the LAMMPS
developers do not control or manage this. if anybody tells us, they
are packaging LAMMPS for a specific OS or architecture or deployment
tool, we are happy to put a reference on the LAMMPS homepage and
manual, but that is about it. you will see the names of the people
contributing this mentioned right where the links/instructions are.

axel.