[SYSTEMDS-3106] Performance issue dense-sparse matmult slower than dense-dense

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: SystemDS 2.2
• Assignee: Matthias Boehm
• Reporter: Matthias Boehm
• Created: 26/Aug/21 19:16
• Updated: 17/Mar/22 20:55
• Resolved: 17/Mar/22 20:55

Description

x= read("train_census_enc_16k.data")
v= rand(rows=16, cols=nrow(x), min=0.0, max=1.0, seed= 13);
print(nrow(x))
print(sum(x))
#x = x+1 
for(i in 1:100) {
  res= v %*% x
}
print(sum(res))