I know slots is something like the batch size. What is the usage scenario of SetSlots method? In a machine learning application, the size of cipher text will become smaller due to downsampling, can OpenFHE change batch size or slots dynamically to enable sparse packing and then make bootstrap faste…

SetSlots can be used to treat the current CKKS ciphertext as a sparse ciphertext (subring element). However, internally this means that a smaller vector has to be cloned as many times as needed to fill the maximum number of slots (half the ring dimension in CKKS). If this ciphertext is not set up th…

OpenFHE SetSlots method: what is the usage scenario?

Library Questions

narger June 9, 2023, 3:10pm 2

Yep, I guess you can

Topic		Replies	Views
Unexpected Value Scaling After SetSlots() in OpenFHE with ResNet-20 Downsampling Library Questions	6	105	August 25, 2025
Relation between ring dimension, batch size, num slots and length Library Questions	5	311	February 1, 2024
Tracking slots of Ciphertexts through operations Library Questions	5	276	November 15, 2023
Bootstrap only to a part of cyphertext? Library Questions	1	40	December 22, 2025
Difference between sparse/full packing FHE Questions	6	810	May 23, 2023

OpenFHE SetSlots method: what is the usage scenario?

Related topics