SC15 — 20-Core, 128 GB CFD HPC Node for Large, Fast ANSYS Fluent Simulations

The SC15 node is a high-performance large-case machine. It pairs 20 cores and 40 threads of high-clocked compute with a substantial 128 GB of RAM and 2 TB of SSD storage — the memory and speed to load large meshes in ANSYS Fluent and solve them fast, with room for the big data files that large and transient simulations produce.

When your simulation is large and your deadline is real, SC15 gives you both the capacity to fit it and the cores to solve it quickly.

Specifications

SC15 pairs 20 high-clocked cores (2.8 GHz base, 3.6 GHz turbo) with 128 GB of RAM and 2 TB of SSD — strong solve speed combined with the memory and storage to handle large cases.

What's included with SC15

Every SC15 rental comes with extras to help you get the most from it:

• A comprehensive CFD course, free — a full training course to sharpen your simulation skills, included at no extra cost.

• One month of Claude AI Premium — AI assistance to support your engineering, scripting, and problem-solving.

• One hour of free CFD consultation — direct time with our CFD engineers to help set up, troubleshoot, or optimize your case.

These come standard with the node — practical support alongside the compute.

What this node is built for

SC15 is the large-case, high-performance tier — strong on both capacity and speed. It suits:

• Large meshes solved fast — into the high tens of millions of cells, with 20 high-clocked cores keeping solve times down.

• Multiphase flows — VOF, Eulerian, and particle models (DPM/DDPM) that demand more memory per cell.

• Combustion and reacting flows — detailed chemistry and species transport at real scale.

• Conjugate heat transfer and thermal models — large coupled fluid-solid domains.

• Long transient simulations — many time steps writing many data files, with 2 TB of SSD to hold the output.

• Deadline-driven professional CFD — when the case is large and turnaround matters.

With 20 cores at 2.8 GHz (turbo to 3.6 GHz) and 128 GB of RAM, large cases both fit and run, then solve fast across all cores.

Both speed and capacity — and how to choose

In CFD, memory sets the largest mesh you can run — roughly 1 GB of RAM per million cells for a typical steady, single-phase case, more for complex physics — while cores set how fast it solves. SC15 is strong on both: 128 GB loads large meshes, and 20 high-clocked cores solve them quickly.

• Want more cores at the same 128 GB? The 24-core flagship SC20 steps up the core count and cache.

• Running very large, memory-bound cases — hundreds of millions of cells? Our 1 TB high-memory node is the right tool.

• Working on moderate cases? A lower-memory node will serve you for less.

Tell us your cell count and physics, and we will match you to the tier that fits.

Fast, roomy SSD storage

The two 1 TB SATA SSDs (about 2 TB total) give both speed and space: responsive read/write for loading and saving large Fluent files, and enough capacity for long transient runs that write data at many time steps. On a high-performance node like this, fast and roomy storage keeps the solve from being held up by disk I/O.

How parallel solving works on this node

When you run Fluent in parallel, the solver partitions your mesh across all 20 cores (using algorithms such as METIS), each core solving its share of cells and exchanging boundary data each iteration via MPI. On a single node, that communication runs through fast on-board channels rather than a network, keeping parallel overhead low. With 128 GB of memory behind 20 high-clocked cores, large cases load comfortably and solve fast.

Why rent instead of buy

A dual-CPU server with 128 GB of ECC RAM and 2 TB of SSD is a significant purchase that depreciates between projects. Renting matches cost to workload:

For teams running large CFD cases on deadlines, SC15 provides high-performance compute on demand — with the 24-core SC20 flagship and the 1 TB node available when you need still more.

How it works — you're in full control

SC15 is yours to drive directly. You connect to the node over a secure remote desktop connection and run everything yourself, exactly as you would on a local workstation:

1. Connect via remote desktop — you get full remote access to the SC15 node.

2. Set up your simulation — load your geometry and case, configure your solver settings, and run ANSYS Fluent with all 20 cores at your command.

3. Run and monitor in real time — start, pause, adjust, and watch the solution as it progresses, with complete control throughout.

4. Keep your results — post-process on the node or download your solution and data files whenever you're ready.

You have full authority over the node for the duration of your rental: we provide the hardware and the support, and you run the simulations your way.

Frequently asked questions

How large a mesh can SC15 handle? With 128 GB of RAM, count on large meshes — into the high tens of millions of cells for simpler steady single-phase cases, with complex physics (multiphase, combustion, many transported scalars) needing more memory per cell and so supporting a somewhat smaller mesh. As a guide, allow about 1 GB of RAM per million cells. Send us your case for a precise estimate.

How is SC15 different from SC20? Both carry 128 GB of RAM and ~2 TB of SSD. SC15 is a 20-core platform; the SC20 flagship uses 24 cores with more cache for faster solves on large cases. Choose SC15 when 20 high-clocked cores are enough; step up to SC20 for maximum solve speed.

When would I need the 1 TB node instead? For very large, memory-bound simulations where even 128 GB is not enough. We will tell you honestly which tier your case needs.

Is my data kept confidential? Yes. Your geometry, case files, and results stay private to you, treated as strictly confidential — and because you run everything yourself over remote desktop, your work stays under your control throughout.

Get started with SC15

If you run large CFD cases on tight deadlines and want both the memory to fit them and the cores to solve them fast — with a free CFD course, a month of Claude AI Premium, and a consultation hour included — SC15 is built for exactly that.

Contact MR CFD for remote-desktop access to SC15 — and we'll help you confirm it's the right tier for your simulation.