|Node Type||Standard||Large Memory||GPU||Visualization|
|Number of Nodes||380||3||20||4|
|Processors||2x 3.0 GHz Intel Xeon Gold 6154||2x 3.0 GHz Intel Xeon Gold 6154||2x 2.4 GHz Intel Xeon Gold 6148||2x 2.4 GHz Intel Xeon Gold 6148|
|Cores per Node||36||36||40||40|
|RAM||192 GB||1.5 TB||192 GB||192 GB|
|Storage||480 GB SSD + 4 TB HDD||4 TB HDD||4 TB HDD||4 TB HDD|
|GPU||N/A||N/A||2x NVidia Tesla V100||1x NVidia Tesla P40|
The compute nodes are all interconnected with InfiniBand HDR networking, capable of 100 Gb/s throughput. In addition to the InfiniBand networking, there is 25 Gb/s ethernet for the login and transfer nodes and a gigabit Ethernet network that connects the remaining nodes. This is used for node management and NFS file system access.
The high-speed scratch file system provides 2 petabytes of storage at approximately 80 GB/s performance (compared to 7 GB/s on Flux).
Computing jobs on Great Lakes are managed completely through Slurm.
There are three layers of software on Great Lakes.
The Great Lakes cluster runs CentOS 7. We update the operating system on Great Lakes as CentOS releases new versions and our library of third-party applications offers support. Due to the need to support several types of drivers (AFS and Lustre file system drivers, InfiniBand network drivers and NVIDIA GPU drivers) and dozens of third party applications, we are cautious in upgrading and can lag CentOS’s releases by months.
Compilers and Parallel and Scientific Libraries
Great Lakes supports the Gnu Compiler Collection, the Intel Compilers, and the PGI Compilers for C and Fortran. The Great Lakes cluster’s parallel library is OpenMPI, and the default versions are 1.10.7 (i686) and 3.1.2 (x86_64), and there are limited earlier versions available. Great Lakes provides the Intel Math Kernel Library (MKL) set of high-performance mathematical libraries. Other common scientific libraries are compiled from source and include HDF5, NetCDF, FFTW3, Boost, and others.
Please contact us if you have questions about the availability of, or support for, any other compilers or libraries.
Great Lakes supports a wide range of application software. We license common engineering simulation software (e.g. Ansys, Abaqus, VASP) and we compile others for use on Great Lakes (e.g. OpenFOAM and Abinit). We also have software for statistics, mathematics, debugging and profiling, etc. Please contact us if you wish to inquire about the current availability of a particular application.
Great Lakes has 40 NVidia Tesla V100 GPUs connected to 20 nodes. 4 NVidia Tesla P40 GPUs connected to 4 nodes are also available for visualization work.
|GPU Model||NVidia Tesla V100||NVidia Tesla P40|
|Number and Type of GPU||one Volta GPU||one Pascal GPU|
|Peak double precision floating point perf.||7 Tflops||N/A|
|Peak single precision floating point perf.||14 Tflops||12 Tflops|
|Memory bandwidth (ECC off)||900 GB/sec||346 GB/sec|
|Memory size (GDDR5)||16 GB HBM2||24 GB GDDR5|
If you have questions, please send email to firstname.lastname@example.org.