Simple-SGEMV-on-GPU

An implementation of SGEMV with performance comparable to cuBLAS.

Sample run on Nvidia RTX 2080 Super.

Sample run1 (testing mysgemv):

./sgemv 20480 20480 1 
m = 20480, n = 20480.
Testing my sgemv.
Start the sanity check...
Sanity check passed. Start performance benchmarking...
Average elasped time: 0.003594 second, performance: 233.399858 GFLOPS.

Sample run2 (testing cublasSgemv):

./sgemv 20480 20480 2
m = 20480, n = 20480.
Testing cuBLAS SGEMV.
Average elasped time: 0.003627 second, performance: 231.293983 GFLOPS.

Full data can be found here.