Adds SummitDev User Guide

systems/index.rst

@@ -9,3 +9,4 @@ System User Guides
 
    summit_user_guide
    rhea_user_guide
+   summitdev_user_guide

systems/rhea_user_guide.rst

@@ -79,7 +79,7 @@ To connect to Rhea, ssh to rhea.ccs.ornl.gov -
 
 	ssh username@rhea.ccs.ornl.gov
 
-For more information on connecting to OLCF resources, see :ref:`connecting-to-olcf`
+For more information on connecting to OLCF resources, see :ref:`connecting-to-olcf`.
 
 --------------
 

systems/summit_user_guide.rst

@@ -428,7 +428,7 @@ To connect to Summit, ssh to summit.olcf.ornl.gov. For example:
 
     ssh username@summit.olcf.ornl.gov
 
-For more information on connecting to OLCF resources, see :ref:`connecting-to-olcf`
+For more information on connecting to OLCF resources, see :ref:`connecting-to-olcf`.
 
 Data and Storage
 ==================

systems/summitdev_user_guide.rst

@@ -0,0 +1,93 @@
+.. _summitdev-user-guide:
+
+********************
+SummitDev User Guide
+********************
+
+.. _summitdev-system-overview:
+
+System Overview
+===============
+
+The SummitDev system was an early access machine available for select teams and
+staff ahead of deploying Summit, the OLCF's current flagship supercomputer. The
+system is now available for Director's Discretion projects that might be new to
+either the Power architecture or utilizing multiple GPUs. It is a stepping
+stone for migrating codes to run on Summit. 
+
+.. _summitdev-hardware:
+
+Hardware
+========
+
+The system contains three racks, totaling 54 IBM POWER8 S822LC compute nodes.
+Each node has 2 IBM POWER8 CPUs and 4 NVIDIA Tesla P100 GPUs. The POWER8 CPUs
+have an attached 256GB of DDR4 memory. The POWER8 CPU has 10 cores, each with 8
+hardware threads. The GPUs are connected by NVLink 1.0 at 80GB/s, and each GPU
+has 16GB HBM2 memory. A node-local NVMe device provides 800GB of high-speed
+scratch storage. Nodes are connected in a full fat-tree by EDR InfiniBand.
+Summitdev has access to Alpine, the same GPFS filesystem mounted on Summit.
+
+.. _summitdev-access:
+
+Access
+======
+
+Access to SummitDev may be granted to Director's Discretion projects with the
+intention of moving to Summit.
+
+Connecting
+==========
+
+To connect to SummitDev, ssh to ``summitdev.ccs.ornl.gov``. For example:
+
+::
+
+    ssh username@summitdev.ccs.ornl.gov
+
+For more information on connecting to OLCF resources, see :ref:`connecting-to-olcf`.
+
+General Use
+===========
+
+While the architecture and design of SummitDev is notably different from
+Summit, much of the system software is similar. See the
+:doc:`./summit_user_guide` for additional information on:
+
+- :ref:`data-storage-and-transfers`
+- :ref:`burst-buffer` (NVMe)
+- :ref:`shell-programming-environments`
+- :ref:`compiling`
+- :ref:`running-jobs`
+
+.. _summitdev-smt:
+
+Simultaneous Multi-Threading (SMT)
+==================================
+
+SummitDev supports SMT up to 8 hardware threads per core. The SMT mode for a
+particular job can be set using a job feature. For example, to set the SMT mode
+to 4 hardware threads per core in a single node (total of 80 hardware threads
+per node):
+
+.. code::
+
+    summitdev-login1$ bsub -alloc_flags smt8 -W 30 -nnodes 1 -P proj123 -Is $SHELL
+    <<Waiting for dispatch ...>>
+    <<Starting on summitdev-login1>>
+    summitdev-login1$ jsrun -n1 /usr/sbin/ppc64_cpu --smt
+    SMT=8
+
+.. _summitdev-batch-queue:
+
+Batch Queue Limits
+==================
+
++-------+--------------+
+| Nodes | Max Walltime |
++=======+==============+
+| <= 4  | 4 Hours      |
++-------+--------------+
+| > 4   | 1 Hour       |
++-------+--------------+
+