This PR introduces automatic GPU detection in the Makefile.

Makefile

@@ -12,8 +12,26 @@ LIBS+=-L$(LIBDIR)
 CXX=g++
 CXXFLAGS=-O2 -std=c++11
 
+# Detects the compute capability of the first GPU
+COMPUTE_CAP := $(shell ./compute_cap.sh)
+
+# Checks if the COMPUTE_CAP variable is empty, and if so, produces a fatal error
+ifeq ($(COMPUTE_CAP),)
+$(error Could not detect a GPU. Please ensure a GPU is available and that nvidia-smi is installed.)
+endif
+
+# Displays the detected compute capability
+$(info Detected Compute Capability: $(COMPUTE_CAP))
+
+# Checks if the COMPUTE_CAP variable is empty, and if so, produces a fatal error
+ifeq ($(COMPUTE_CAP),)
+$(error Could not detect a GPU. Please ensure a GPU is available and that nvidia-smi is installed.)
+endif
+
+# Displays the detected compute capability
+$(info Detected Compute Capability: $(COMPUTE_CAP))
+
 # CUDA variables
-COMPUTE_CAP=30
 NVCC=nvcc
 NVCCFLAGS=-std=c++11 -gencode=arch=compute_${COMPUTE_CAP},code=\"sm_${COMPUTE_CAP}\" -Xptxas="-v" -Xcompiler "${CXXFLAGS}"
 CUDA_HOME=/usr/local/cuda

compute_cap.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+# Obtém o nome da GPU usando o nvidia-smi
+GPU_NAME=$(nvidia-smi --query-gpu=name --format=csv,noheader,nounits | head -n 1)
+
+# Mapeamento das GPUs para suas Compute Capabilities
+case "$GPU_NAME" in
+  *"RTX 5090"*) echo "120" ;; # NVIDIA GeForce RTX 5090
+  *"RTX 4090"*) echo "89" ;;  # NVIDIA GeForce RTX 4090
+  *"RTX 4080"*) echo "89" ;;  # NVIDIA GeForce RTX 4080
+  *"RTX 4070"*) echo "89" ;;  # NVIDIA GeForce RTX 4070
+  *"RTX 4060"*) echo "89" ;;  # NVIDIA GeForce RTX 4060
+  *"RTX 3090"*) echo "86" ;;  # NVIDIA GeForce RTX 3090
+  *"RTX 3080"*) echo "86" ;;  # NVIDIA GeForce RTX 3080
+  *"RTX 3070"*) echo "86" ;;  # NVIDIA GeForce RTX 3070
+  *"RTX 3060"*) echo "86" ;;  # NVIDIA GeForce RTX 3060
+  *"A100"*) echo "80" ;;      # NVIDIA A100
+  *"V100"*) echo "70" ;;      # NVIDIA V100
+  *"T4"*) echo "75" ;;        # NVIDIA T4
+  *"P100"*) echo "60" ;;      # NVIDIA P100
+  *"A30"*) echo "80" ;;       # NVIDIA A30
+  *"A40"*) echo "86" ;;       # NVIDIA A40
+  *"A10"*) echo "86" ;;       # NVIDIA A10
+  *"Titan V"*) echo "70" ;;   # NVIDIA Titan V
+  *"Titan RTX"*) echo "75" ;; # NVIDIA Titan RTX
+  *"GTX 1080"*) echo "61" ;;  # NVIDIA GTX 1080
+  *"GTX 1070"*) echo "61" ;;  # NVIDIA GTX 1070
+  *"GTX 1060"*) echo "61" ;;  # NVIDIA GTX 1060
+  *"GTX 1050"*) echo "61" ;;  # NVIDIA GTX 1050
+  *"GTX 1660"*) echo "75" ;;  # NVIDIA GTX 1660
+  *"Quadro RTX 8000"*) echo "75" ;;  # NVIDIA Quadro RTX 8000
+  *"Quadro RTX 6000"*) echo "75" ;;  # NVIDIA Quadro RTX 6000
+  *"Quadro T2000"*) echo "75" ;;     # NVIDIA Quadro T2000
+  *"Quadro P4000"*) echo "61" ;;     # NVIDIA Quadro P4000
+  *"Quadro K6000"*) echo "35" ;;     # NVIDIA Quadro K6000
+  *"Tesla K80"*) echo "37" ;;        # NVIDIA Tesla K80
+  *"Tesla P4"*) echo "61" ;;         # NVIDIA Tesla P4
+  *"Tesla P100"*) echo "60" ;;       # NVIDIA Tesla P100
+  *"Tesla T4"*) echo "75" ;;         # NVIDIA Tesla T4
+  *"Tesla V100"*) echo "70" ;;       # NVIDIA Tesla V100
+  *)
+    echo "Unknown compute capability for GPU: $GPU_NAME"
+    exit 1 ;;
+esac