SC61

SC61 — 88-Core Quad-Xeon CFD Node for Massively Parallel ANSYS Fluent Solves

The SC61 node delivers very high CPU parallelism for ANSYS Fluent, putting four Intel® Xeon® E5-4669 v4 CPUs — 88 cores and 176 threads in total — behind your simulation. Paired with 128 GB of RAM, it's built to spread large, well-partitioning meshes across an exceptional core count for strong parallel throughput. When your case scales well and you want a high-core node at an accessible tier, SC61 is the choice.

It is a maximum-core, multi-socket tier in our range: four enterprise-class Xeon CPUs, a sensible 128 GB memory budget, and the parallel headroom to push large CFD cases hard.

Specifications

SC61 uses four Xeon E5-4669 v4 CPUs in a single quad-socket system: 88 cores total at 2.2 GHz base (3.0 GHz turbo) with 55 MB of cache per CPU — enterprise-class Broadwell-EX silicon built for heavily parallel workloads. With 128 GB of RAM behind those cores, it's matched to large, well-partitioning meshes solved across exceptional parallelism.

What's included with SC61

Every SC61 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

SC61 is a maximum-core, multi-socket tier in our range. It suits:

• Large meshes solved fast — spread across 88 cores, a well-partitioned case converges quickly.

• Heavy parameter studies and design sweeps — more cores means more variants processed per hour.

• Steady and transient runs that fit in 128 GB — where the bottleneck is solve throughput, not memory.

• Highly parallel professional CFD — when raw core count drives your turnaround.

With 88 cores at up to 3.0 GHz, Fluent partitions your mesh across all of them for a strong parallel speed-up, while 128 GB of RAM keeps large, well-partitioning cases in memory.

Cores vs. memory: choosing SC61

SC61's headline is cores — a very high count across four sockets. In CFD, cores determine how fast a case solves, while memory sets the largest mesh you can run — roughly 1 GB of RAM per million cells for a typical steady, single-phase case. With 128 GB, SC61 pairs exceptional parallelism with a moderate memory budget, so it's best suited to large cases that fit in 128 GB and partition well.

• Need more memory to match the core count? Step up to SC63 (quad Xeon Platinum, 96 cores, 256 GB) or SC56 (1 TB high-memory).

• Want newer-generation cores? See SC62 (48-core dual Xeon Platinum) or SC58 (48-core modern EPYC).

• Want GPU acceleration? Our GPU tiers (GP1, GP2) run Fluent's native GPU solver.

Tell us your cell count and physics, and we'll match you to the tier that fits. Very high core counts pay off most when a case is large enough to partition efficiently and fits in memory — for smaller or memory-bound cases, another tier may suit better, and we'll help you confirm.

Fast SSD storage

The two 1 TB SATA SSDs deliver responsive read/write for loading case files, writing solution data, and handling autosaves — keeping a fast solve from being held up by slow disk I/O. If your work involves long transient runs that write very large datasets, let us know and we can advise on the right storage configuration for your job.

How parallel solving works on this node

When you run Fluent in parallel, the solver partitions your mesh across all 88 cores (using algorithms such as METIS), each core solving its share of cells and exchanging boundary data each iteration via MPI. On a single quad-socket node, that communication runs over fast on-board interconnects between the CPUs rather than a network, keeping parallel overhead far lower than a multi-machine cluster. For large cases that fit in 128 GB and partition well, those 88 cores deliver a substantial speed-up.

Why rent instead of buy

A four-socket, 88-core server is a major investment to own and maintain. Renting SC61 gives you that parallel scale on demand — plus a free course, a month of Claude AI Premium, and a consultation hour — with an easy step to a higher-memory or newer-generation node when your needs grow.

How it works — you're in full control

SC61 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 SC61 node.

2. Set up your simulation — load your geometry and case, configure your solver settings, and run ANSYS Fluent with all 88 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

What makes SC61 fast?
It carries a very high core count — four Xeon E5-4669 v4 CPUs for 88 cores / 176 threads total, at up to 3.0 GHz. For large cases that partition well and fit in 128 GB, that parallelism delivers strong solve throughput.

How is SC61 different from SC63?
Both are quad-socket nodes. SC61 uses Broadwell-EX Xeons (88 cores, 128 GB); SC63 uses newer Xeon Platinum CPUs (96 cores, 256 GB). Step up to SC63 for newer cores and more memory.

How large a mesh can it handle?
With 128 GB of RAM, plan for large meshes — into the tens of millions of cells for simpler steady single-phase cases, fewer for transient or multiphase physics (about 1 GB of RAM per million cells is a good starting estimate). Send us your case for a precise answer.

Will my case use all 88 cores effectively?
It depends on size. Very high core counts pay off most on large meshes that partition efficiently; smaller cases may not scale all the way to 88 cores, where parallel overhead can eat into the gain. Send us your setup and we'll advise whether SC61 or a different tier is the better fit.

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 SC61

If you want very high CPU parallelism for large CFD cases — with a free CFD course, a month of Claude AI Premium, and a consultation hour included — SC61's 88 cores are built for exactly that.

Contact MR CFD for remote-desktop access to SC61 — and we'll help you confirm it's the right tier for your simulation.