just curious about the 'm' integer when using feast.
currently i know what the 'bottom eigenvector' will be (it's the unit vector with eigenvalue 0), so i specify the last eigenvector to ensure the correct solution is found.
in the end, the eigensolver finds exactly one less than the total number of eigenvalues being requested. i.e. if i request 151 eigenvectors, and i've specified the bottom one, it says 150 eigenvectors are found.
i just want to ensure that this behaviour is correct, as it seems i have 151 total eigenvectors (150 of which were 'found', the last of which was a 'guess').