Chemical Physics of Solids

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Name of the cluster:

MARS

Institution:

Max Planck Institute for Chemical Physics of Solids

Login nodes:

All nodes in cluster are login nodes

• mars[1-5,8-9].opt.rzg.mpg.de

Hardware-Configuration:

		Login/Compute nodes
		mars1	mars2	mars3	mars4	mars5	mars8	mars9
CPU:	Intel(R) Xeon(R) CPU E7-4890 v2 @ 2.80GHz						X
	Intel(R) Xeon(R) CPU E7-8867 v3 @ 2.50GHz							X
	Intel(R) Xeon(R) CPU E7-8867 v4 @ 2.40GHz	X
	Intel(R) Xeon(R) Gold 6148 CPU @ 2.40GHz			X
	Intel(R) Xeon(R) Gold 6248 CPU @ 2.50GHz		X
	Intel(R) Xeon(R) Platinum 8268 CPU @ 2.90GHz				X	X
CPU(s)		144	160	160	96	96	60	64
Thread(s) per core		2	2	2	1	1	1	1
Core(s) per socket		18	20	20	24	24	15	16
Socket(s)		4	4	4	4	4	4	4
RAM		1.5T	1.5T	1.5T	3.0T	3.0T	1.5T	1.5T

Node interconnect is based on 1Gb/s ethernet

Filesystems:

Home directories are stored on AFS

/batch3

shared home filesystem (44 TB); GPFS-based; no quotas enforced. NO BACKUPS!

Compilers and Libraries:

The “module” subsystem is implemented on MARS. Please use ‘module available’ to see all available modules.

• Intel compilers (-> ‘module load intel’): icc, icpc, ifort

• GNU compilers (-> ‘module load gcc’): gcc, g++, gfortran

• Intel MKL (‘module load mkl’): $MKL_HOME defined; libraries found in $MKL_HOME/lib/intel64

• Intel MPI 2017.4 (‘module load impi’): mpicc, mpigcc, mpiicc, mpiifort, mpiexec, …´

Batch system based on Slurm:

• only for administrative system monitoring

Useful tips:

We recommend to submit jobs from /ptmp filesystem instead to use $HOME directories on network AFS

The OpenMP codes require a variable OMP_NUM_THREADS to be set.

Support:

For support please create a trouble ticket at the MPCDF helpdesk.