SPEChpc™ 2021 Small Result

Lenovo Global Technology

ThinkSystem SC777 V4(Arm Neoverse V2, Nvidia
GB200)

SPEChpc 2021_sml_base = 12.10

SPEChpc 2021_sml_peak = 12.10

hpc2021 License:	28	Test Date:	May-2026
Test Sponsor:	Lenovo Global Technology	Hardware Availability:	Oct-2026
Tested by:	Lenovo Global Technology	Software Availability:	Oct-2026

Benchmark result graphs are available in the PDF report.

Results Table

Benchmark	Base									Peak
Benchmark	Model	Ranks	Thrds/Rnk	Seconds	Ratio	Seconds	Ratio	Seconds	Ratio	Model	Ranks	Thrds/Rnk	Seconds	Ratio	Seconds	Ratio	Seconds	Ratio
SPEChpc 2021_sml_base					12.10
SPEChpc 2021_sml_peak					12.10
Results appear in the order in which they were run. Bold underlined text indicates a median measurement.
605.lbm_s	ACC	4	1	2040	7.60	1980	7.82	1980	7.84	ACC	4	1	2040	7.60	1980	7.82	1980	7.84
613.soma_s	ACC	4	1	77.3	20.70	77.3	20.70	77.3	20.70	ACC	4	1	77.3	20.70	77.3	20.70	77.3	20.70
618.tealeaf_s	ACC	4	1	1460	14.00	1460	14.00	1460	14.00	ACC	4	1	1460	14.00	1460	14.00	1460	14.00
619.clvleaf_s	ACC	4	1	1360	12.10	1360	12.10	1360	12.10	ACC	4	1	1360	12.10	1360	12.10	1360	12.10
621.miniswp_s	ACC	4	1	60.6	18.20	60.6	18.10	60.6	18.10	ACC	4	1	60.6	18.20	60.6	18.10	60.6	18.10
628.pot3d_s	ACC	4	1	1030	16.20	1040	16.20	1030	16.20	ACC	4	1	1030	16.20	1040	16.20	1030	16.20
632.sph_exa_s	ACC	4	1	4170	5.52	4190	5.49	4140	5.55	ACC	4	1	4170	5.52	4190	5.49	4140	5.55
634.hpgmgfv_s	ACC	4	1	1970	4.94	1970	4.96	1970	4.94	ACC	4	1	1970	4.94	1970	4.96	1970	4.94
635.weather_s	ACC	4	1	1010	25.60	1010	25.70	1010	25.60	ACC	4	1	1010	25.60	1010	25.70	1010	25.60

Hardware Summary
Type of System:	Homogeneous Cluster
Compute Node:	ThinkSystem SC777 V4
Compute Nodes Used:	1
Total Chips:	2
Total Cores:	144
Total Threads:	144
Total Memory:	960 GB
Total Accelerators:	4
Max. Peak Threads:	1

Software Summary
Compiler:	NVIDIA HPC SDK 25.11
MPI Library:	Open MPI 4.1.9a1
Other MPI Info:	None
Base Parallel Model:	ACC
Base Ranks Run:	4
Base Threads Run:	1
Peak Parallel Models:	ACC
Minimum Peak Ranks:	4
Maximum Peak Ranks:	4
Max. Peak Threads:	1
Min. Peak Threads:	1

Node Description: ThinkSystem SC777 V4

Hardware
Number of nodes:	1
Uses of the node:	compute
Vendor:	Lenovo Global Technology
Model:	ThinkSystem SC777 V4
CPU Name:	NVIDIA Grace Neoverse V2 CPU
CPU(s) orderable:	2 chips
Chips enabled:	2
Cores enabled:	144
Cores per chip:	72
Threads per core:	1
CPU Characteristics:	Grace CPU @3.3GHz
CPU MHz:	3300
Primary Cache:	64 KB I + 64 KB D on chip per core
Secondary Cache:	1 MB I+D on chip per core
L3 Cache:	117 MB I+D on chip per chip
Other Cache:	None
Memory:	960 GB (2x 480 GB LPDDR5X)
Disk Subsystem:	1x ThinkSystem 2.5" 5300 480GB SSD
Other Hardware:	None
Accel Count:	4
Accel Model:	NVIDIA GB200
Accel Vendor:	NVIDIA Corporation
Accel Type:	GPU
Accel Connection:	NVLink-C2C
Accel ECC enabled:	Yes
Accel Description:	NVIDIA Grace Blackwell GB200
Adapter:	N/A
Number of Adapters:	1
Slot Type:	N/A
Data Rate:	N/A
Ports Used:	0
Interconnect Type:	N/A

Software
Accelerator Driver:	610.43.02
Adapter:	N/A
Adapter Driver:	N/A
Adapter Firmware:	N/A
Operating System:	Ubuntu 24.04.4 LTS, Kernel 6.17.0-1018-nvidia-64k
Local File System:	xfs
Shared File System:	XFS
System State:	Multi-user, run level 3
Other Software:	None

Submit Notes

The config file option 'submit' was used.

General Notes

Environment variables set by runhpc before the start of the run:
UCX_MEMTYPE_CACHE = "n"
UCX_NET_DEVICES = "all"
UCX_TLS = "self,sm,cuda_copy,tcp"

Compiler Version Notes

==============================================================================
 CC  605.lbm_s(base) 613.soma_s(base) 618.tealeaf_s(base) 621.miniswp_s(base)
      634.hpgmgfv_s(base)
------------------------------------------------------------------------------
nvc 25.11-0 linuxarm64 target on aarch64 Linux -tp neoverse-v2 
NVIDIA Compilers and Tools
Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES.  All rights reserved.
------------------------------------------------------------------------------

==============================================================================
 CXXC 632.sph_exa_s(base)
------------------------------------------------------------------------------
nvc++ 25.11-0 linuxarm64 target on aarch64 Linux -tp neoverse-v2 
NVIDIA Compilers and Tools
Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES.  All rights reserved.
------------------------------------------------------------------------------

==============================================================================
 FC  619.clvleaf_s(base) 628.pot3d_s(base) 635.weather_s(base)
------------------------------------------------------------------------------
nvfortran 25.11-0 linuxarm64 target on aarch64 Linux -tp neoverse-v2 
NVIDIA Compilers and Tools
Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES.  All rights reserved.
------------------------------------------------------------------------------

Base Compiler Invocation

C benchmarks:

mpicc

C++ benchmarks:

mpicxx

Fortran benchmarks:

mpif90

Base Portability Flags

605.lbm_s:	-DSPEC_OPENACC_NO_SELF
632.sph_exa_s:	--c++17

Base Other Flags

C benchmarks:

-Ispecmpitime -w

C++ benchmarks:

-Ispecmpitime -w

Fortran benchmarks (except as noted below):

	-w
619.clvleaf_s:	-Ispecmpitime -w

Peak Optimization Flags

C benchmarks:

605.lbm_s:	basepeak = yes
613.soma_s:	basepeak = yes
618.tealeaf_s:	basepeak = yes
621.miniswp_s:	basepeak = yes
634.hpgmgfv_s:	basepeak = yes

C++ benchmarks:

632.sph_exa_s:

basepeak = yes

Fortran benchmarks:

619.clvleaf_s:	basepeak = yes
628.pot3d_s:	basepeak = yes
635.weather_s:	basepeak = yes

The flags file that was used to format this result can be browsed at
http://www.spec.org/hpc2021/flags/nv2021_flags_v1.0.3.2026-09-16.html.

You can also download the XML flags source by saving the following link:
http://www.spec.org/hpc2021/flags/nv2021_flags_v1.0.3.2026-09-16.xml.