Comments (4)
from dr1dl-dask.
I have tried other unsuccessful attempts:
v = cp.random.random(176) #(176,)
indices = np.argpartition(v,-20)[-20:] #(20,)
col = cp.ones(20) #(20,)
cupyx.scipy.sparse.coo_matrix((v[indices],(indices,col)))
This results in an error saying that all parameters needs to be 1D arrays, even though they are all 1D.
v = cp.random.random(176) #(176,)
indices = np.argpartition(v,-20)[-20:] #(20,)
min = v[indices].min()
v[v < min] = 0
cupyx.scipy.sparse.coo_matrix(v)
I think this method only works when v is already a sparse matrix.
from dr1dl-dask.
I noticed in dask's distributed repository, they had some unit testing where they implemented the cupyx.scipy.sparse.coo_matrix here. I got that to work.
from dr1dl-dask.
u_new = da.dot(S,_V_.result()).compute()
is causing an error:
TypeError: 'coo_matrix' object is not subscriptable
Where V.result() returns a dask cupy sparse array.
Looks like it is being looked into cupy/cupy#3178.
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