klustakwik Linear algebra error on cluster

[mariadorofeikova]

Hi!
I have preprocessed data in a standard way that worked before, but not I am getting the following:

Extracting waveforms : 100%|###################################| 2525/2525 [00:39<00:00, 63.55it/s]
Performing PCA : 100%|#########################################| 1/1 [00:00<00:00, 16.14it/s]
Computing features : 100%|#################################| 2525/2525 [1:13:14<00:00, 1.74s/it]
17:36:33 [I] launch:218 Spike detection done! 5767580 spikes found in shank 0
17:36:34 [I] launch:249 Starting clustering on shank 0/1.
17:36:35 [I] launch:252 Clustering group 0 (5767580 spikes).
17:36:35 [I] launch:123 Starting KK...
17:36:35 [I] klustakwik KlustaKwik2 version 0.2.6
17:41:52 [I] klustakwik.initial_parameters num_changed_threshold = 0.05
17:41:52 [I] klustakwik.initial_parameters split_every = 40
17:41:52 [I] klustakwik.initial_parameters max_quick_step_candidates = 100000000
17:41:52 [I] klustakwik.initial_parameters break_fraction = 0.0
17:41:52 [I] klustakwik.initial_parameters max_split_iterations = None
17:41:52 [I] klustakwik.initial_parameters mua_point = 2
17:41:52 [I] klustakwik.initial_parameters subset_break_fraction = 0.01
17:41:52 [I] klustakwik.initial_parameters fast_split = False
17:41:52 [I] klustakwik.initial_parameters num_starting_clusters = 100
17:41:52 [I] klustakwik.initial_parameters always_split_bimodal = False
17:41:52 [I] klustakwik.initial_parameters prior_point = 1
17:41:52 [I] klustakwik.initial_parameters use_mua_cluster = True
17:41:52 [I] klustakwik.initial_parameters dist_thresh = 9.210340371976184
17:41:52 [I] klustakwik.initial_parameters points_for_cluster_mask = 100
17:41:52 [I] klustakwik.initial_parameters consider_cluster_deletion = True
17:41:52 [I] klustakwik.initial_parameters max_iterations = 1000
17:41:52 [I] klustakwik.initial_parameters num_cpus = None
17:41:52 [I] klustakwik.initial_parameters use_noise_cluster = True
17:41:52 [I] klustakwik.initial_parameters max_possible_clusters = 1000
17:41:52 [I] klustakwik.initial_parameters split_first = 20
17:41:52 [I] klustakwik.initial_parameters max_quick_step_candidates_fraction = 0.4
17:41:52 [I] klustakwik.initial_parameters noise_point = 1
17:41:52 [I] klustakwik.initial_parameters penalty_k = 0.0
17:41:52 [I] klustakwik.initial_parameters penalty_k_log_n = 1.0
17:41:52 [I] klustakwik.initial_parameters full_step_every = 1
17:41:52 [I] klustakwik Using mask starts with 100 clusters, data has 96 unique masks
17:41:52 [W] klustakwik Not enough masks (96) for specified number of starting clusters (100)
17:42:01 [I] klustakwik Clustering data set of 5767580 points, 48 features
17:42:01 [I] klustakwik Starting iteration 0 with 98 clusters
17:42:14 [W] klustakwik Linear algebra error on cluster 2
17:42:19 [W] klustakwik Linear algebra error on cluster 3
17:42:30 [W] klustakwik Linear algebra error on cluster 4
17:42:30 [W] klustakwik Linear algebra error on cluster 5
17:42:30 [W] klustakwik Linear algebra error on cluster 6
17:42:31 [W] klustakwik Linear algebra error on cluster 7
17:42:32 [W] klustakwik Linear algebra error on cluster 8
17:42:32 [W] klustakwik Linear algebra error on cluster 9
17:42:33 [W] klustakwik Linear algebra error on cluster 10
17:42:33 [W] klustakwik Linear algebra error on cluster 11
17:42:33 [W] klustakwik Linear algebra error on cluster 12
17:42:33 [W] klustakwik Linear algebra error on cluster 13
17:42:33 [W] klustakwik Linear algebra error on cluster 14
17:42:33 [W] klustakwik Linear algebra error on cluster 15
17:42:34 [W] klustakwik Linear algebra error on cluster 16
17:42:34 [W] klustakwik Linear algebra error on cluster 17
17:42:34 [W] klustakwik Linear algebra error on cluster 18
17:42:34 [W] klustakwik Linear algebra error on cluster 19
17:42:34 [W] klustakwik Linear algebra error on cluster 20
17:42:34 [W] klustakwik Linear algebra error on cluster 21
17:42:34 [W] klustakwik Linear algebra error on cluster 22
17:42:34 [W] klustakwik Linear algebra error on cluster 23
17:42:34 [W] klustakwik Linear algebra error on cluster 24
17:42:34 [W] klustakwik Linear algebra error on cluster 25
17:42:34 [W] klustakwik Linear algebra error on cluster 26
17:42:34 [W] klustakwik Linear algebra error on cluster 27
17:42:34 [W] klustakwik Linear algebra error on cluster 28
17:42:34 [W] klustakwik Linear algebra error on cluster 29
17:42:34 [W] klustakwik Linear algebra error on cluster 30
17:42:34 [W] klustakwik Linear algebra error on cluster 31
17:42:34 [W] klustakwik Linear algebra error on cluster 32
17:42:34 [W] klustakwik Linear algebra error on cluster 33
17:42:34 [W] klustakwik Linear algebra error on cluster 34
17:42:34 [W] klustakwik Linear algebra error on cluster 35
17:42:34 [W] klustakwik Linear algebra error on cluster 36
17:42:34 [W] klustakwik Linear algebra error on cluster 37
17:42:34 [W] klustakwik Linear algebra error on cluster 38
17:42:34 [W] klustakwik Linear algebra error on cluster 39
17:42:34 [W] klustakwik Linear algebra error on cluster 40
17:42:34 [W] klustakwik Linear algebra error on cluster 41
17:42:34 [W] klustakwik Linear algebra error on cluster 42
17:42:34 [W] klustakwik Linear algebra error on cluster 43
17:42:34 [W] klustakwik Linear algebra error on cluster 44
17:42:34 [W] klustakwik Linear algebra error on cluster 45
17:42:34 [W] klustakwik Linear algebra error on cluster 46
17:42:34 [W] klustakwik Linear algebra error on cluster 47
17:42:34 [W] klustakwik Linear algebra error on cluster 48
17:42:34 [W] klustakwik Linear algebra error on cluster 49
17:42:34 [W] klustakwik Linear algebra error on cluster 50
17:42:34 [W] klustakwik Linear algebra error on cluster 51
17:42:34 [W] klustakwik Linear algebra error on cluster 52
17:42:34 [W] klustakwik Linear algebra error on cluster 53
17:42:34 [W] klustakwik Linear algebra error on cluster 54
17:42:34 [W] klustakwik Linear algebra error on cluster 55
17:42:34 [W] klustakwik Linear algebra error on cluster 56
17:42:34 [W] klustakwik Linear algebra error on cluster 57
17:42:34 [W] klustakwik Linear algebra error on cluster 58
17:42:34 [W] klustakwik Linear algebra error on cluster 59
17:42:34 [W] klustakwik Linear algebra error on cluster 60
17:42:34 [W] klustakwik Linear algebra error on cluster 61
17:42:34 [W] klustakwik Linear algebra error on cluster 62
17:42:34 [W] klustakwik Linear algebra error on cluster 63
17:42:34 [W] klustakwik Linear algebra error on cluster 64
17:42:34 [W] klustakwik Linear algebra error on cluster 65
17:42:34 [W] klustakwik Linear algebra error on cluster 66
17:42:34 [W] klustakwik Linear algebra error on cluster 67
17:42:34 [W] klustakwik Linear algebra error on cluster 68
17:42:34 [W] klustakwik Linear algebra error on cluster 69
17:42:34 [W] klustakwik Linear algebra error on cluster 70
17:42:34 [W] klustakwik Linear algebra error on cluster 71
17:42:34 [W] klustakwik Linear algebra error on cluster 72
17:42:34 [W] klustakwik Linear algebra error on cluster 73
17:42:34 [W] klustakwik Linear algebra error on cluster 74
17:42:34 [W] klustakwik Linear algebra error on cluster 75
17:42:34 [W] klustakwik Linear algebra error on cluster 76
17:42:34 [W] klustakwik Linear algebra error on cluster 77
17:42:34 [W] klustakwik Linear algebra error on cluster 78
17:42:34 [W] klustakwik Linear algebra error on cluster 79
17:42:34 [W] klustakwik Linear algebra error on cluster 80
17:42:34 [W] klustakwik Linear algebra error on cluster 81
17:42:34 [W] klustakwik Linear algebra error on cluster 82
17:42:34 [W] klustakwik Linear algebra error on cluster 83
17:42:34 [W] klustakwik Linear algebra error on cluster 84
17:42:34 [W] klustakwik Linear algebra error on cluster 85
17:42:34 [W] klustakwik Linear algebra error on cluster 86
17:42:34 [W] klustakwik Linear algebra error on cluster 87
17:42:34 [W] klustakwik Linear algebra error on cluster 88
17:42:34 [W] klustakwik Linear algebra error on cluster 89
17:42:34 [W] klustakwik Linear algebra error on cluster 90
17:42:34 [W] klustakwik Linear algebra error on cluster 91
17:42:34 [W] klustakwik Linear algebra error on cluster 92
17:42:34 [W] klustakwik Linear algebra error on cluster 93
17:42:34 [W] klustakwik Linear algebra error on cluster 94
17:42:34 [W] klustakwik Linear algebra error on cluster 95
17:42:34 [W] klustakwik Linear algebra error on cluster 96
17:42:34 [W] klustakwik Linear algebra error on cluster 97
17:42:34 [I] klustakwik Not enough clusters to try deletion
17:42:35 [I] klustakwik Iteration 1F: 2 clusters, 5767580 changed, score=89788648.310887
17:42:55 [I] klustakwik Not enough clusters to try deletion
17:42:55 [I] klustakwik Iteration 2F: 2 clusters, 0 changed, score=231.982110 (decreased by 89788416.328777)
17:42:55 [I] klustakwik No points changed and last step was full, so trying to split.
17:42:55 [I] klustakwik Trying to split clusters
17:43:13 [I] klustakwik No points changed, previous step was full and did not split, so finishing.
17:43:13 [I] launch:131 The automatic clustering process has finished.
17:43:13 [I] launch:268 Save the clustering to 2022-08-29_15-46-52M4R1.kwik.
17:43:14 [I] model:1085 Save the Kwik file at C:\klusta\PRM files\HP\2022-08-29_15-46-52M4R1\2022-08-29_15-46-52M4R1.kwik.
17:43:14 [I] launch:290 Clustering done!

Why could I be getting those Linear algebra errors? I have enough space on the PC.