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# ASC server infrastructure overview
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## Introduction
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This wiki gives an overview of the various server machines offered by the ASC chair.
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## Interactive nodes
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| hostname | CPU | cores | architecture | RAM | description |
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| -------- | ----------------------------------- | ----- | ------------ | ------ | --------------------------------------------------------------------------------------------------- |
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| mp-login | | | | | accessible to everyone with an ASC username |
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| mp-headnode | 2× Intel Xeon Gold 6130 @ 2.1 GHz | 2×16 | Skylake-SP | 192 GB | headnode of the compute cluster<br>compile and debug your applications<br>and submit your jobs here |
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## Compute nodes
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| hostname | CPU | cores | architecture | RAM | GPU | NVMe | description |
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| ------------ | ------------------------------------- | ----- | --------------- | ------ | -------------------------- | --------- | ------------------|
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| mp-skl2s8c | 2× Intel Xeon Silver 4110 @ 2.1 GHz | 2×8 | Skylake-SP | 96 GB | NVIDIA GeForce GTX 1080 Ti | | |
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| mp-skl2s24c | 2× Intel Xeon Platinum 8168 @ 2.7 GHz | 2×24 | Skylake-SP | 96 GB | | | |
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| mp-media1 | Intel Xeon E3-1585 v5 @ 3.5 GHz | 4 (8) | Skylake-H | 64 GB | Intel Iris Pro P580 | 2× 1.6 TB | |
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| mp-media2 | Intel Xeon E3-1585 v5 @ 3.5 GHz | 4 (8) | Skylake-H | 64 GB | Intel Iris Pro P580 | 1.6 TB | |
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| mp-media3 | Intel Xeon E3-1585 v5 @ 3.5 GHz | 4 (8) | Skylake-H | 64 GB | Intel Iris Pro P580 | | |
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| mp-media4 | Intel Xeon E3-1585 v5 @ 3.5 GHz | 4 (8) | Skylake-H | 64 GB | Intel Iris Pro P580 | | |
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| mp-knl1 | Intel Xeon Phi 7210 @ 1.3 GHz | 64 | Knights Landing | 112 GB | | | Quadrant, Cache |
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| mp-knl2 | Intel Xeon Phi 7210 @ 1.3 GHz | 64 | Knights Landing | 96 GB | | | Hemisphere, Cache |
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| mp-knl3 | Intel Xeon Phi 7210 @ 1.3 GHz | 64 | Knights Landing | 96 GB | | | All2All, Cache |
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| mp-knl4 | Intel Xeon Phi 7210 @ 1.3 GHz | 64 | Knights Landing | 96 GB | | | SNC, Cache |
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| mp-process01 | Intel Xeon E5504 @ 2.0 GHz | 4 | Nehalem | 8 GB | NVIDIA GeForce GTX 1070 | | |
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| mp-process02 | Intel Xeon E5504 @ 2.0 GHz | 4 | Nehalem | 8 GB | NVIDIA GeForce GTX 1070 | | |
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| mp-process03 | Intel Xeon E5504 @ 2.0 GHz | 4 | Nehalem | 8 GB | NVIDIA GeForce GTX 1070 | | |
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| mp-process04 | Intel Xeon E5504 @ 2.0 GHz | 4 | Nehalem | 8 GB | NVIDIA GeForce GTX 1070 | | |
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| mp-capture01 | Intel Xeon E5530 @ 2.4 GHz | 4 | Nehalem | 48 GB | 2× NVIDIA GeForce GTX 1070 | | |
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| mp-capture02 | Intel Xeon E5530 @ 2.4 GHz | 4 | Nehalem | 48 GB | 2× NVIDIA GeForce GTX 1070 | | |
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## CPU architecture overview
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| feature || Xeon E5504 | Xeon E5530 | Xeon E3-1585 | Xeon Silver 4110 | Xeon Gold 6130 | Xeon Platinum 8168 | Xeon Phi 7210 |
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| --------------------------- || ----------- | ----------- | -------------- | ---------------- | -------------- | ------------------ | ---------------- |
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| architecture || Nehalem | Nehalem | Skylake-H | Skylake-SP | Skylake-SP | Skylake-SP | Knights Landing |
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| vector instructions || SSE4.2 | SSE4.2 | AVX2 | AVX-512 | AVX-512 | AVX-512 | AVX-512 |
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| cores per socket || 4 | 4 | 4 | 8 | 16 | 24 | 64 |
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| --------------------------- || ----------- | ----------- | -------------- | ---------------- | -------------- | ------------------ | ---------------- |
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| base frequency || 2.0 GHz | 2.4 GHz | 3.5..3.9 GHz | 2.1 GHz | 2.1 GHz | 2.7 GHz | 1.3 GHz |
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| AVX2 frequency || | | 3.5..3.9 GHz | 1.7 GHz | 1.7 GHz | 2.3 GHz | 1.1 GHz |
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| AVX-512 frequency || | | | 1.0 GHz | 1.3 GHz | 1.9 GHz | 1.1 GHz |
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| --------------------------- || ----------- | ----------- | -------------- | ---------------- | -------------- | ------------------ | ---------------- |
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| L1 instruction cache || 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
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| L1 data cache || 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
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| L2 cache (per core) || 256 KB | 256 KB | 256 KB | 1 MB | 1 MB | 1 MB | 1 MB per 2 cores |
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| L2 cache (per socket) || 1 MB | 1 MB | 1 MB | 8 MB | 16 MB | 24 MB | 32 MB |
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| L3 cache type || inclusive | inclusive | inclusive | exclusive | exclusive | exclusive | |
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| L3 cache (per core) || | | 2 MB | 1.375 MB | 1.375 MB | 1.375 MB | |
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| L3 cache (per socket) || 4 MB | 8 MB | 8 MB | 11 MB | 22 MB | 33 MB | |
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| eDRAM || | | 128 MB | | | | |
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| HBM || | | | | | | 16 GB |
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| --------------------------- || ----------- | ----------- | -------------- | ---------------- | -------------- | ------------------ | ---------------- |
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| L1 read bandwidth || | | 448..499 GB/s | 269 GB/s | 269 GB/s | 346 GB/s | 166 GB/s |
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| L2 bandwidth || | | 224..250 GB/s | 135 GB/s | 135 GB/s | 173 GB/s | 83 GB/s |
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| eDRAM bandwidth, ST || | | | | | | |
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| eDRAM bandwidth, concurrent || | | | | | | |
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| HBM bandwidth, ST || | | | | | | |
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| HBM bandwidth, concurrent || | | | | | | |
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| --------------------------- || ----------- | ----------- | -------------- | ---------------- | -------------- | ------------------ | ---------------- |
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| SSE2 GFlops/s || | | | | | | |
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| AVX2 GFlops/s || | | | | | | |
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| AVX-512 GFlops/s || | | | | | | | |
