long computing time for TSS enrichment score
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Taeim • 0
@2e69c005
Last seen 2.2 years ago
United States

Hi! While running TSS enrichment score for scATAC-seq, I found it took me so long time to compute and ended up terminating the process because my Mac was overheating. I am using Mac (M2) but have R for Mac Intel because there were some of the packages from Bioconductor that I couldn't install using R for Mac M1. Could anyone let me know how to improve computing time for TSS enrichment?

Code should be placed in three backticks as shown below


pbmc <- TSSEnrichment (object = pbmc, fast = FALSE) 

Extracting TSS positions
Finding + strand cut sites
[W::hts_idx_load2] The index file is older than the data file: <file path>

sessionInfo( )
ATACSeq • 1.6k views
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Had the same problem. Tried running with fast = TRUE and could see how it should complete. I'm on M1 mac using R for apple silicon and most stuff seems to work ok.

I'm guessing its a memory issue but afraid I gave up.

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Hi Taeim,

I am facing a similar issue, a call to TSSEnrichment takes ~6 hours with a Multiome dataset of ~9K cells. IIRC, this function did not take this long to execute in previous analyses I've done. Did you ever manage to find a working solution, or did you just end up dealing with the long computation time?

obj <- TSSEnrichment(obj, tss.positions = hg38_Anno, fast = TRUE)
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