[chibi@centos8 ~]$ ls NVIDIA_CUDA-11.0_Samples テンプレート ドキュメント 音楽 公開 ダウンロード デスクトップ ビデオ 画像 [chibi@centos8 ~]$ cd NVIDIA_CUDA-11.0_Samples [chibi@centos8 NVIDIA_CUDA-11.0_Samples]$ ls 0_Simple 2_Graphics 4_Finance 6_Advanced EULA.txt Makefile 1_Utilities 3_Imaging 5_Simulations 7_CUDALibraries LICENSE common [chibi@centos8 NVIDIA_CUDA-11.0_Samples]$ cd 0_Simple [chibi@centos8 0_Simple]$ ls UnifiedMemoryStreams simpleCooperativeGroups asyncAPI simpleCubemapTexture bf16TensorCoreGemm simpleCudaGraphs binaryPartitionCG simpleDrvRuntime cdpSimplePrint simpleIPC cdpSimpleQuicksort simpleLayeredTexture clock simpleMPI clock_nvrtc simpleMultiCopy cppIntegration simpleMultiGPU cppOverload simpleOccupancy cudaNvSci simpleP2P cudaOpenMP simplePitchLinearTexture cudaTensorCoreGemm simplePrintf dmmaTensorCoreGemm simpleSeparateCompilation fp16ScalarProduct simpleStreams globalToShmemAsyncCopy simpleSurfaceWrite immaTensorCoreGemm simpleTemplates inlinePTX simpleTemplates_nvrtc inlinePTX_nvrtc simpleTexture matrixMul simpleTextureDrv matrixMulCUBLAS simpleVoteIntrinsics matrixMulDrv simpleVoteIntrinsics_nvrtc matrixMul_nvrtc simpleZeroCopy memMapIPCDrv systemWideAtomics simpleAWBarrier template simpleAssert tf32TensorCoreGemm simpleAssert_nvrtc vectorAdd simpleAtomicIntrinsics vectorAddDrv simpleAtomicIntrinsics_nvrtc vectorAddMMAP simpleAttributes vectorAdd_nvrtc simpleCallback [chibi@centos8 0_Simple]$ cd simpleP2P [chibi@centos8 simpleP2P]$ ls Makefile NsightEclipse.xml readme.txt simpleP2P.cu [chibi@centos8 simpleP2P]$ make /usr/local/cuda-11.0/bin/nvcc -ccbin g++ -I../../common/inc -m64 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_37,code=sm_37 -gencode arch=compute_50,code=sm_50 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_60,code=sm_60 -gencode arch=compute_61,code=sm_61 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_75,code=sm_75 -gencode arch=compute_80,code=sm_80 -gencode arch=compute_80,code=compute_80 -o simpleP2P.o -c simpleP2P.cu nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). /usr/local/cuda-11.0/bin/nvcc -ccbin g++ -m64 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_37,code=sm_37 -gencode arch=compute_50,code=sm_50 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_60,code=sm_60 -gencode arch=compute_61,code=sm_61 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_75,code=sm_75 -gencode arch=compute_80,code=sm_80 -gencode arch=compute_80,code=compute_80 -o simpleP2P simpleP2P.o nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). mkdir -p ../../bin/x86_64/linux/release cp simpleP2P ../../bin/x86_64/linux/release [chibi@centos8 simpleP2P]$ ./simpleP2P [./simpleP2P] - Starting... Checking for multiple GPUs... CUDA-capable device count: 2 Checking GPU(s) for support of peer to peer memory access... > Peer access from TITAN RTX (GPU0) -> TITAN RTX (GPU1) : Yes > Peer access from TITAN RTX (GPU1) -> TITAN RTX (GPU0) : Yes Enabling peer access between GPU0 and GPU1... Allocating buffers (64MB on GPU0, GPU1 and CPU Host)... Creating event handles... cudaMemcpyPeer / cudaMemcpy between GPU0 and GPU1: 43.54GB/s Preparing host buffer and memcpy to GPU0... Run kernel on GPU1, taking source data from GPU0 and writing to GPU1... Run kernel on GPU0, taking source data from GPU1 and writing to GPU0... Copy data back to host from GPU0 and verify results... Disabling peer access... Shutting down... Test passed [chibi@centos8 simpleP2P]$ cd ~/NVIDIA_CUDA-11.0_Samples/1_Utilities [chibi@centos8 1_Utilities]$ ls UnifiedMemoryPerf deviceQuery p2pBandwidthLatencyTest bandwidthTest deviceQueryDrv topologyQuery [chibi@centos8 1_Utilities]$ cd p2pBandwidthLatencyTest [chibi@centos8 p2pBandwidthLatencyTest]$ make /usr/local/cuda-11.0/bin/nvcc -ccbin g++ -I../../common/inc -m64 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_37,code=sm_37 -gencode arch=compute_50,code=sm_50 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_60,code=sm_60 -gencode arch=compute_61,code=sm_61 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_75,code=sm_75 -gencode arch=compute_80,code=sm_80 -gencode arch=compute_80,code=compute_80 -o p2pBandwidthLatencyTest.o -c p2pBandwidthLatencyTest.cu nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). /usr/local/cuda-11.0/bin/nvcc -ccbin g++ -m64 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_37,code=sm_37 -gencode arch=compute_50,code=sm_50 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_60,code=sm_60 -gencode arch=compute_61,code=sm_61 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_75,code=sm_75 -gencode arch=compute_80,code=sm_80 -gencode arch=compute_80,code=compute_80 -o p2pBandwidthLatencyTest p2pBandwidthLatencyTest.o nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). mkdir -p ../../bin/x86_64/linux/release cp p2pBandwidthLatencyTest ../../bin/x86_64/linux/release [chibi@centos8 p2pBandwidthLatencyTest]$ ./p2pBandwidthLatencyTest [P2P (Peer-to-Peer) GPU Bandwidth Latency Test] Device: 0, TITAN RTX, pciBusID: 3, pciDeviceID: 0, pciDomainID:0 Device: 1, TITAN RTX, pciBusID: 21, pciDeviceID: 0, pciDomainID:0 Device=0 CAN Access Peer Device=1 Device=1 CAN Access Peer Device=0 ***NOTE: In case a device doesn't have P2P access to other one, it falls back to normal memcopy procedure. So you can see lesser Bandwidth (GB/s) and unstable Latency (us) in those cases. P2P Connectivity Matrix D\D 0 1 0 1 1 1 1 1 Unidirectional P2P=Disabled Bandwidth Matrix (GB/s) D\D 0 1 0 549.98 11.45 1 11.42 553.29 Unidirectional P2P=Enabled Bandwidth (P2P Writes) Matrix (GB/s) D\D 0 1 0 552.71 47.00 1 46.93 553.29 Bidirectional P2P=Disabled Bandwidth Matrix (GB/s) D\D 0 1 0 553.29 17.62 1 20.09 557.48 Bidirectional P2P=Enabled Bandwidth Matrix (GB/s) D\D 0 1 0 555.65 93.54 1 93.74 552.51 P2P=Disabled Latency Matrix (us) GPU 0 1 0 1.88 13.75 1 13.41 1.84 CPU 0 1 0 3.75 10.35 1 12.02 3.94 P2P=Enabled Latency (P2P Writes) Matrix (us) GPU 0 1 0 1.87 2.10 1 2.05 1.84 CPU 0 1 0 4.10 3.55 1 3.58 4.09 NOTE: The CUDA Samples are not meant for performance measurements. Results may vary when GPU Boost is enabled. [chibi@centos8 p2pBandwidthLatencyTest]$ cd ~/NVIDIA_CUDA-11.0_Samples/1_Utiliti es/bandwidthTest [chibi@centos8 bandwidthTest]$ make /usr/local/cuda-11.0/bin/nvcc -ccbin g++ -I../../common/inc -m64 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_37,code=sm_37 -gencode arch=compute_50,code=sm_50 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_60,code=sm_60 -gencode arch=compute_61,code=sm_61 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_75,code=sm_75 -gencode arch=compute_80,code=sm_80 -gencode arch=compute_80,code=compute_80 -o bandwidthTest.o -c bandwidthTest.cu nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). /usr/local/cuda-11.0/bin/nvcc -ccbin g++ -m64 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_37,code=sm_37 -gencode arch=compute_50,code=sm_50 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_60,code=sm_60 -gencode arch=compute_61,code=sm_61 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_75,code=sm_75 -gencode arch=compute_80,code=sm_80 -gencode arch=compute_80,code=compute_80 -o bandwidthTest bandwidthTest.o nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). mkdir -p ../../bin/x86_64/linux/release cp bandwidthTest ../../bin/x86_64/linux/release [chibi@centos8 bandwidthTest]$ ./bandwidthTest [CUDA Bandwidth Test] - Starting... Running on... Device 0: TITAN RTX Quick Mode Host to Device Bandwidth, 1 Device(s) PINNED Memory Transfers Transfer Size (Bytes) Bandwidth(GB/s) 32000000 11.9 Device to Host Bandwidth, 1 Device(s) PINNED Memory Transfers Transfer Size (Bytes) Bandwidth(GB/s) 32000000 12.4 Device to Device Bandwidth, 1 Device(s) PINNED Memory Transfers Transfer Size (Bytes) Bandwidth(GB/s) 32000000 540.3 Result = PASS NOTE: The CUDA Samples are not meant for performance measurements. Results may vary when GPU Boost is enabled. [chibi@centos8 bandwidthTest]$ cd ~/NVIDIA_CUDA-11.0_Samples/1_Utilities/deviceQuery [chibi@centos8 deviceQuery]$ make /usr/local/cuda-11.0/bin/nvcc -ccbin g++ -I../../common/inc -m64 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_37,code=sm_37 -gencode arch=compute_50,code=sm_50 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_60,code=sm_60 -gencode arch=compute_61,code=sm_61 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_75,code=sm_75 -gencode arch=compute_80,code=sm_80 -gencode arch=compute_80,code=compute_80 -o deviceQuery.o -c deviceQuery.cpp nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). /usr/local/cuda-11.0/bin/nvcc -ccbin g++ -m64 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_37,code=sm_37 -gencode arch=compute_50,code=sm_50 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_60,code=sm_60 -gencode arch=compute_61,code=sm_61 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_75,code=sm_75 -gencode arch=compute_80,code=sm_80 -gencode arch=compute_80,code=compute_80 -o deviceQuery deviceQuery.o nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). mkdir -p ../../bin/x86_64/linux/release cp deviceQuery ../../bin/x86_64/linux/release [chibi@centos8 deviceQuery]$ ./deviceQuery ./deviceQuery Starting... CUDA Device Query (Runtime API) version (CUDART static linking) Detected 2 CUDA Capable device(s) Device 0: "TITAN RTX" CUDA Driver Version / Runtime Version 11.0 / 11.0 CUDA Capability Major/Minor version number: 7.5 Total amount of global memory: 24220 MBytes (25396445184 bytes) (72) Multiprocessors, ( 64) CUDA Cores/MP: 4608 CUDA Cores GPU Max Clock rate: 1770 MHz (1.77 GHz) Memory Clock rate: 7001 Mhz Memory Bus Width: 384-bit L2 Cache Size: 6291456 bytes Maximum Texture Dimension Size (x,y,z) 1D=(131072), 2D=(131072, 65536), 3D=(16384, 16384, 16384) Maximum Layered 1D Texture Size, (num) layers 1D=(32768), 2048 layers Maximum Layered 2D Texture Size, (num) layers 2D=(32768, 32768), 2048 layers Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 49152 bytes Total number of registers available per block: 65536 Warp size: 32 Maximum number of threads per multiprocessor: 1024 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): (1024, 1024, 64) Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535) Maximum memory pitch: 2147483647 bytes Texture alignment: 512 bytes Concurrent copy and kernel execution: Yes with 3 copy engine(s) Run time limit on kernels: Yes Integrated GPU sharing Host Memory: No Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device supports Managed Memory: Yes Device supports Compute Preemption: Yes Supports Cooperative Kernel Launch: Yes Supports MultiDevice Co-op Kernel Launch: Yes Device PCI Domain ID / Bus ID / location ID: 0 / 3 / 0 Compute Mode: < Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) > Device 1: "TITAN RTX" CUDA Driver Version / Runtime Version 11.0 / 11.0 CUDA Capability Major/Minor version number: 7.5 Total amount of global memory: 24220 MBytes (25396838400 bytes) (72) Multiprocessors, ( 64) CUDA Cores/MP: 4608 CUDA Cores GPU Max Clock rate: 1770 MHz (1.77 GHz) Memory Clock rate: 7001 Mhz Memory Bus Width: 384-bit L2 Cache Size: 6291456 bytes Maximum Texture Dimension Size (x,y,z) 1D=(131072), 2D=(131072, 65536), 3D=(16384, 16384, 16384) Maximum Layered 1D Texture Size, (num) layers 1D=(32768), 2048 layers Maximum Layered 2D Texture Size, (num) layers 2D=(32768, 32768), 2048 layers Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 49152 bytes Total number of registers available per block: 65536 Warp size: 32 Maximum number of threads per multiprocessor: 1024 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): (1024, 1024, 64) Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535) Maximum memory pitch: 2147483647 bytes Texture alignment: 512 bytes Concurrent copy and kernel execution: Yes with 3 copy engine(s) Run time limit on kernels: No Integrated GPU sharing Host Memory: No Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device supports Managed Memory: Yes Device supports Compute Preemption: Yes Supports Cooperative Kernel Launch: Yes Supports MultiDevice Co-op Kernel Launch: Yes Device PCI Domain ID / Bus ID / location ID: 0 / 33 / 0 Compute Mode: < Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) > > Peer access from TITAN RTX (GPU0) -> TITAN RTX (GPU1) : Yes > Peer access from TITAN RTX (GPU1) -> TITAN RTX (GPU0) : Yes deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 11.0, CUDA Runtime Version = 11.0, NumDevs = 2 Result = PASS [chibi@centos8 deviceQuery]$ cat /etc/redhat-release CentOS Linux release 8.2.2004 (Core) [chibi@centos8 deviceQuery]$ nvcc -V nvcc: NVIDIA (R) Cuda compiler driver Copyright (c) 2005-2020 NVIDIA Corporation Built on Wed_May__6_19:09:25_PDT_2020 Cuda compilation tools, release 11.0, V11.0.167 Build cuda_11.0_bu.TC445_37.28358933_0 [chibi@centos8 deviceQuery]$ lscpu アーキテクチャ: x86_64 CPU 操作モード: 32-bit, 64-bit バイト順序: Little Endian CPU: 64 オンラインになっている CPU のリスト: 0-63 コアあたりのスレッド数: 2 ソケットあたりのコア数: 32 ソケット数: 1 NUMA ノード数: 4 ベンダー ID: AuthenticAMD CPU ファミリー: 23 モデル: 49 モデル名: AMD EPYC 7502P 32-Core Processor ステッピング: 0 CPU MHz: 1733.426 CPU 最大 MHz: 2500.0000 CPU 最小 MHz: 1500.0000 BogoMIPS: 4990.72 仮想化: AMD-V L1d キャッシュ: 32K L1i キャッシュ: 32K L2 キャッシュ: 512K L3 キャッシュ: 16384K NUMA ノード 0 CPU: 0-7,32-39 NUMA ノード 1 CPU: 8-15,40-47 NUMA ノード 2 CPU: 16-23,48-55 NUMA ノード 3 CPU: 24-31,56-63 フラグ: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate sme ssbd mba sev ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr wbnoinvd arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif umip rdpid overflow_recov succor smca [chibi@centos8 deviceQuery]$ lsmem RANGE SIZE STATE REMOVABLE BLOCK 0x0000000000000000-0x0000000007ffffff 128M online no 0 0x0000000008000000-0x000000002fffffff 640M online yes 1-5 0x0000000030000000-0x0000000037ffffff 128M online no 6 0x0000000038000000-0x000000006fffffff 896M online yes 7-13 0x0000000070000000-0x0000000077ffffff 128M online no 14 0x0000000078000000-0x000000007fffffff 128M online yes 15 0x0000000080000000-0x000000009fffffff 512M online no 16-19 0x0000000100000000-0x0000000107ffffff 128M online no 32 0x0000000108000000-0x00000003efffffff 11.6G online yes 33-125 0x00000003f0000000-0x00000003f7ffffff 128M online no 126 0x00000003f8000000-0x00000007c7ffffff 15.3G online yes 127-248 0x00000007c8000000-0x0000000867ffffff 2.5G online no 249-268 0x0000000868000000-0x0000001027ffffff 31G online yes 269-516 0x0000001028000000-0x0000001067ffffff 1G online no 517-524 0x0000001068000000-0x000000181fffffff 30.9G online yes 525-771 0x0000001820000000-0x0000001867ffffff 1.1G online no 772-780 0x0000001868000000-0x0000002027ffffff 31G online yes 781-1028 0x0000002028000000-0x000000205fffffff 896M online no 1029-1035 メモリブロックサイズ 128M Total online memory: 128G Total offline memory: 0B [chibi@centos8 deviceQuery]$ lstopo Machine (126GB total) + Package L#0 NUMANode L#0 (P#0 31GB) L3 L#0 (16MB) L2 L#0 (512KB) + L1d L#0 (32KB) + L1i L#0 (32KB) + Core L#0 PU L#0 (P#0) PU L#1 (P#32) L2 L#1 (512KB) + L1d L#1 (32KB) + L1i L#1 (32KB) + Core L#1 PU L#2 (P#1) PU L#3 (P#33) L2 L#2 (512KB) + L1d L#2 (32KB) + L1i L#2 (32KB) + Core L#2 PU L#4 (P#2) PU L#5 (P#34) L2 L#3 (512KB) + L1d L#3 (32KB) + L1i L#3 (32KB) + Core L#3 PU L#6 (P#3) PU L#7 (P#35) L3 L#1 (16MB) L2 L#4 (512KB) + L1d L#4 (32KB) + L1i L#4 (32KB) + Core L#4 PU L#8 (P#4) PU L#9 (P#36) L2 L#5 (512KB) + L1d L#5 (32KB) + L1i L#5 (32KB) + Core L#5 PU L#10 (P#5) PU L#11 (P#37) L2 L#6 (512KB) + L1d L#6 (32KB) + L1i L#6 (32KB) + Core L#6 PU L#12 (P#6) PU L#13 (P#38) L2 L#7 (512KB) + L1d L#7 (32KB) + L1i L#7 (32KB) + Core L#7 PU L#14 (P#7) PU L#15 (P#39) NUMANode L#1 (P#1 31GB) L3 L#2 (16MB) L2 L#8 (512KB) + L1d L#8 (32KB) + L1i L#8 (32KB) + Core L#8 PU L#16 (P#8) PU L#17 (P#40) L2 L#9 (512KB) + L1d L#9 (32KB) + L1i L#9 (32KB) + Core L#9 PU L#18 (P#9) PU L#19 (P#41) L2 L#10 (512KB) + L1d L#10 (32KB) + L1i L#10 (32KB) + Core L#10 PU L#20 (P#10) PU L#21 (P#42) L2 L#11 (512KB) + L1d L#11 (32KB) + L1i L#11 (32KB) + Core L#11 PU L#22 (P#11) PU L#23 (P#43) L3 L#3 (16MB) L2 L#12 (512KB) + L1d L#12 (32KB) + L1i L#12 (32KB) + Core L#12 PU L#24 (P#12) PU L#25 (P#44) L2 L#13 (512KB) + L1d L#13 (32KB) + L1i L#13 (32KB) + Core L#13 PU L#26 (P#13) PU L#27 (P#45) L2 L#14 (512KB) + L1d L#14 (32KB) + L1i L#14 (32KB) + Core L#14 PU L#28 (P#14) PU L#29 (P#46) L2 L#15 (512KB) + L1d L#15 (32KB) + L1i L#15 (32KB) + Core L#15 PU L#30 (P#15) PU L#31 (P#47) HostBridge L#0 PCIBridge PCI 1022:7901 Block(Disk) L#0 "sda" PCIBridge PCI 1022:7901 NUMANode L#2 (P#2 31GB) L3 L#4 (16MB) L2 L#16 (512KB) + L1d L#16 (32KB) + L1i L#16 (32KB) + Core L#16 PU L#32 (P#16) PU L#33 (P#48) L2 L#17 (512KB) + L1d L#17 (32KB) + L1i L#17 (32KB) + Core L#17 PU L#34 (P#17) PU L#35 (P#49) L2 L#18 (512KB) + L1d L#18 (32KB) + L1i L#18 (32KB) + Core L#18 PU L#36 (P#18) PU L#37 (P#50) L2 L#19 (512KB) + L1d L#19 (32KB) + L1i L#19 (32KB) + Core L#19 PU L#38 (P#19) PU L#39 (P#51) L3 L#5 (16MB) L2 L#20 (512KB) + L1d L#20 (32KB) + L1i L#20 (32KB) + Core L#20 PU L#40 (P#20) PU L#41 (P#52) L2 L#21 (512KB) + L1d L#21 (32KB) + L1i L#21 (32KB) + Core L#21 PU L#42 (P#21) PU L#43 (P#53) L2 L#22 (512KB) + L1d L#22 (32KB) + L1i L#22 (32KB) + Core L#22 PU L#44 (P#22) PU L#45 (P#54) L2 L#23 (512KB) + L1d L#23 (32KB) + L1i L#23 (32KB) + Core L#23 PU L#46 (P#23) PU L#47 (P#55) HostBridge L#3 PCIBridge PCI 10de:1e02 GPU L#1 "renderD128" GPU L#2 "card0" PCIBridge PCI 1022:7901 NUMANode L#3 (P#3 31GB) L3 L#6 (16MB) L2 L#24 (512KB) + L1d L#24 (32KB) + L1i L#24 (32KB) + Core L#24 PU L#48 (P#24) PU L#49 (P#56) L2 L#25 (512KB) + L1d L#25 (32KB) + L1i L#25 (32KB) + Core L#25 PU L#50 (P#25) PU L#51 (P#57) L2 L#26 (512KB) + L1d L#26 (32KB) + L1i L#26 (32KB) + Core L#26 PU L#52 (P#26) PU L#53 (P#58) L2 L#27 (512KB) + L1d L#27 (32KB) + L1i L#27 (32KB) + Core L#27 PU L#54 (P#27) PU L#55 (P#59) L3 L#7 (16MB) L2 L#28 (512KB) + L1d L#28 (32KB) + L1i L#28 (32KB) + Core L#28 PU L#56 (P#28) PU L#57 (P#60) L2 L#29 (512KB) + L1d L#29 (32KB) + L1i L#29 (32KB) + Core L#29 PU L#58 (P#29) PU L#59 (P#61) L2 L#30 (512KB) + L1d L#30 (32KB) + L1i L#30 (32KB) + Core L#30 PU L#60 (P#30) PU L#61 (P#62) L2 L#31 (512KB) + L1d L#31 (32KB) + L1i L#31 (32KB) + Core L#31 PU L#62 (P#31) PU L#63 (P#63) HostBridge L#6 PCIBridge PCI 8086:1533 Net L#3 "eth0" PCIBridge PCI 8086:1533 Net L#4 "eth1" PCIBridge PCI 10de:1e02 GPU L#5 "card1" GPU L#6 "renderD129" [chibi@centos8 deviceQuery]$ cat /proc/meminfo MemTotal: 131611616 kB MemFree: 129055356 kB MemAvailable: 129367276 kB Buffers: 1060 kB Cached: 1045856 kB SwapCached: 0 kB Active: 605536 kB Inactive: 879040 kB Active(anon): 437696 kB Inactive(anon): 9976 kB Active(file): 167840 kB Inactive(file): 869064 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 244 kB Writeback: 0 kB AnonPages: 425732 kB Mapped: 317544 kB Shmem: 12092 kB KReclaimable: 147756 kB Slab: 483516 kB SReclaimable: 147756 kB SUnreclaim: 335760 kB KernelStack: 15696 kB PageTables: 25012 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 65805808 kB Committed_AS: 2799112 kB VmallocTotal: 34359738367 kB VmallocUsed: 0 kB VmallocChunk: 0 kB Percpu: 39168 kB HardwareCorrupted: 0 kB AnonHugePages: 159744 kB ShmemHugePages: 0 kB ShmemPmdMapped: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Hugetlb: 0 kB DirectMap4k: 673744 kB DirectMap2M: 12822528 kB DirectMap1G: 121634816 kB [chibi@centos8 deviceQuery]$ free total used free shared buff/cache available Mem: 131611616 1360684 129055408 12092 1195524 129367992 Swap: 0 0 0 [chibi@centos8 deviceQuery]$ cd [chibi@centos8 ~]$ nvidia-smi Sun Jul 19 18:34:48 2020 +-----------------------------------------------------------------------------+ | NVIDIA-SMI 450.36.06 Driver Version: 450.36.06 CUDA Version: 11.0 | |-------------------------------+----------------------+----------------------+ | GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. | | | | MIG M. | |===============================+======================+======================| | 0 TITAN RTX Off | 00000000:03:00.0 Off | N/A | | 41% 42C P8 10W / 280W | 271MiB / 24219MiB | 0% Default | | | | N/A | +-------------------------------+----------------------+----------------------+ | 1 TITAN RTX Off | 00000000:21:00.0 Off | N/A | | 40% 39C P8 25W / 280W | 1MiB / 24220MiB | 0% Default | | | | N/A | +-------------------------------+----------------------+----------------------+ +-----------------------------------------------------------------------------+ | Processes: | | GPU GI CI PID Type Process name GPU Memory | | ID ID Usage | |=============================================================================| | 0 N/A N/A 2232 G /usr/libexec/Xorg 105MiB | | 0 N/A N/A 2712 G /usr/bin/gnome-shell 163MiB | +-----------------------------------------------------------------------------+ [chibi@centos8 ~]$ nvidia-smi nvlink -c GPU 0: TITAN RTX (UUID: GPU-7fb51c1d-c1e7-35cc-aad7-66971f05ddb7) Link 0, P2P is supported: true Link 0, Access to system memory supported: true Link 0, P2P atomics supported: true Link 0, System memory atomics supported: true Link 0, SLI is supported: true Link 0, Link is supported: false Link 1, P2P is supported: true Link 1, Access to system memory supported: true Link 1, P2P atomics supported: true Link 1, System memory atomics supported: true Link 1, SLI is supported: true Link 1, Link is supported: false GPU 1: TITAN RTX (UUID: GPU-5a71d61e-f130-637a-b33d-4df555b0ed88) Link 0, P2P is supported: true Link 0, Access to system memory supported: true Link 0, P2P atomics supported: true Link 0, System memory atomics supported: true Link 0, SLI is supported: true Link 0, Link is supported: false Link 1, P2P is supported: true Link 1, Access to system memory supported: true Link 1, P2P atomics supported: true Link 1, System memory atomics supported: true Link 1, SLI is supported: true Link 1, Link is supported: false [chibi@centos8 ~]$