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changes.mady.by.user Anton Riedel
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changes.mady.by.user Stefan Recksiegel
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The CUDA (Compute Unified Device Architecture) SDK can be used to write programms running on NVIDIA GPUs. Most workstations in CIP2 have CUDA installed, the workstations have aliases "cuda1"-"cuda6".
These machines are used for the CUDA seminar that is usually offered in the summer semester.
We have one GeForce RTX 3080 Ti with CUDA capability 8.6, one GeForce GTX 1650 with CUDA capability 7.5, two GeForce GTX 1050 with CUDA capability 6.1, a GeForce GTX 960 with CUDA capability 5.2, a GeForce GTX 780 with CUDA capability 3.5 and a couple of others.
Host | Alias | Card
cip2ryzen2 | cuda1 | GeForce RTX 3080 Ti
cip2ryzen3 | cuda2 | GeForce GTX 1650
cip1ivy | cuda3 | GeForce GTX 1050 Ti
cip2coffee | cuda4 | GeForce GTX 1050
cip2ryzen1 | cuda5 | GeForce GTX 960
cip1sandy2 | cuda6 | GeForce GTX 780
cont3iseven1 | X | GeForce GT 630
cont3iseven2 | X | GeForce GT 710
You can find out about the CUDA capabilities of the card in your workstation with the deviceQuery program from the samples directory:
[ga45can@cip2ryzen2] ~ /mount/share/cuda-11.4-samples/1_Utilities/deviceQuery/deviceQuery
CUDA Device Query (Runtime API) version (CUDART static linking)
Detected 1 CUDA Capable device(s)
Device 0: "NVIDIA GeForce RTX 3080 Ti"
CUDA Driver Version / Runtime Version 11.4 / 11.4
CUDA Capability Major/Minor version number: 8.6
Total amount of global memory: 12052 MBytes (12637962240 bytes)
(080) Multiprocessors, (128) CUDA Cores/MP: 10240 CUDA Cores
GPU Max Clock rate: 1710 MHz (1.71 GHz)
Memory Clock rate: 9501 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 shared memory per multiprocessor: 102400 bytes
Total number of registers available per block: 65536
Warp size: 32
Maximum number of threads per multiprocessor: 1536
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 2 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 / 9 / 0
< Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) >
deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 11.4, CUDA Runtime Version = 11.4, NumDevs = 1
Result = PASS
Local users can also try the graphical examples in /mount/share/cuda-samples, there are the binaries, the source code and quite a lot of documentation. Compiling your own programs has become a lot easier since CUDA5, in the past we needed to make lots of modifications to the Makefiles, but now there are just a few changesis rather easy, you just need to make a few modifications to the Makefile. After you have copied the source files to your home directory, change the line
CUDA_PATH ?= /usr/local/cudato
CUDA_PATH ?= /usr(reflecting the fact that we install CUDA as part of the OS) and for the more complex examples
INCLUDES := -I../../common/incto
INCLUDES := -I/mount/share/cuda-samples/common/incCommon
(necessary because the includes of the samples are in the cuda tree, not in your HOME.) Also, you should comment out (or delete) the lines that make a copy of the finished binary,
# $(EXEC) mkdir -p ../../bin/$(OS_ARCH)/$(OSLOWER)/$(TARGET)$(if $(abi),/$(abi))
# $(EXEC) cp $@ ../../bin/$(OS_ARCH)/$(OSLOWER)/$(TARGET)$(if $(abi),/$(abi))
This way you should be able to compile everything by typing make.
Excellent Documentation is available at the NVIDIA homepage. You should check out this extensive site. But for starters it should be enough to read Getting_Started. Last but not least, don't forget to checkout the webinars.