SC44 — 128-Core, 1 TB CFD HPC Node: The Ultimate ANSYS Fluent Powerhouse

The SC44 node is the most powerful machine in our entire lineup — by a wide margin. A single AMD EPYC 9754 (Zen 4c, 4th-generation EPYC) brings 128 cores and 256 threads of modern compute, paired with a massive 1 TB of RAM and fast NVMe SSD storage. It is built to do what no other node can: load the largest meshes in ANSYS Fluent and solve them at the highest speed, on the most modern architecture we offer — with no trade-off between cores and memory.

If you have a simulation that is too big and too slow for anything else, this is the node for it.

Specifications

SC44 leads the range on every dimension at once: the highest core count (128 / 256 threads) — nearly three times our 44-core Xeon flagship — a huge 256 MB cache, a full 1 TB of RAM, the newest architecture (Zen 4c with AVX-512, DDR5, PCIe Gen 5), and fast NVMe storage. Notably, all 128 cores sustain their 3.1 GHz boost together, so a full-machine CFD solve runs every core at speed.

What's included with SC44

Every SC44 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

SC44 is the no-compromise tier — built for the largest, most demanding CFD work where you need both maximum capacity and maximum speed:

• The largest meshes, solved fast — with 1 TB of RAM and 128 modern cores, very large meshes both fit and solve quickly.

• Heavy multiphase and combustion — VOF, Eulerian, particle models, detailed chemistry and species transport at full scale.

• Large transient simulations — many time steps across many cores, with fast NVMe storage for the data output.

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

• Large parameter studies and DOEs on a deadline — 128 cores deliver throughput nothing else in the range can match.

• The most time-critical professional CFD — when the case is huge and the deadline is real.

With 128 cores at a sustained 3.1 GHz and 1 TB of RAM, even very large cases both fit and run, then solve faster than anything else we offer.

Maximum on every axis

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. Most nodes ask you to choose. SC44 does not: 1 TB of RAM handles meshes in the hundreds of millions of cells, and 128 modern cores solve them at maximum speed, on a newer architecture with AVX-512 acceleration and high memory bandwidth.

• It is the top of the entire range — more cores, more memory, and a more modern architecture than any other node.

• Our other 1 TB node pairs that memory with a smaller core count; SC44 pairs 1 TB with 128 cores, for both capacity and speed at once.

Tell us your cell count and physics, and we will confirm SC44 is the right fit — or point you to a more economical tier if your case does not need this much machine.

Fast NVMe storage

The two 1 TB NVMe SSDs (about 2 TB total) deliver very high read/write speeds — far faster than SATA — so loading huge case files, writing large data files, and handling frequent autosaves all happen quickly. On a node running the largest cases, fast storage keeps disk I/O from ever becoming the bottleneck.

How parallel solving works on this node

When you run Fluent in parallel, the solver partitions your mesh across all 128 cores (using algorithms such as METIS), each core solving its share of cells and exchanging boundary data each iteration via MPI. On a single modern CPU, that communication runs over fast on-chip and on-board paths, keeping parallel overhead low — and with very large meshes, 128 cores each carry a substantial share of the work, so the solve scales strongly. The result is the fastest large-case turnaround in the lineup.

Why rent instead of buy

A 128-core EPYC server with 1 TB of ECC RAM and NVMe storage is a very significant purchase that depreciates between projects. Renting matches cost to workload:

For teams that occasionally need a true HPC-class machine without owning one, SC44 puts flagship compute on demand — and you can step down to a smaller node whenever a case does not need it.

How it works — you're in full control

SC44 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 SC44 node.

2. Set up your simulation — load your geometry and case, configure your solver settings, and run ANSYS Fluent with all 128 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 SC44 the most powerful node? It leads the range on every axis at once: 128 cores / 256 threads (the highest count we offer), 1 TB of RAM, the newest architecture (Zen 4c with AVX-512, DDR5, PCIe Gen 5), a huge 256 MB cache, and fast NVMe storage. It is the only node that pairs maximum cores with maximum memory.

How large a mesh can it handle? With 1 TB of RAM, count on very large meshes — into the hundreds of millions of cells, depending on the physics (allow about 1 GB of RAM per million cells as a guide, more for complex physics). And unlike a high-memory node with few cores, SC44's 128 cores solve those large meshes quickly. Send us your case for a precise estimate.

Is this overkill for my case? It can be — SC44 is built for the largest, most demanding work. If your case is moderate, a smaller node will serve you for less. Tell us your cell count and physics and we will recommend the right tier honestly.

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 SC44

If you have a CFD case that is both too large and too slow for any other machine, SC44 is the no-compromise answer — 128 modern cores and 1 TB of memory, with a free CFD course, a month of Claude AI Premium, and a consultation hour included.

Contact MR CFD for remote-desktop access to SC44 — and we'll help you confirm it's the right tier for your simulation.