[PeerDAS] Parallelize data column sampling (#14105)

* PeerDAS: parallelizing sample queries * PeerDAS: select sample from non custodied columns * Finish rebase * Add more test cases
prysmaticlabs · Jul 16, 2024 · 4b3a0b5 · 4b3a0b5
1 parent 9572c16
commit 4b3a0b5
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diff --git a/beacon-chain/core/peerdas/helpers.go b/beacon-chain/core/peerdas/helpers.go
@@ -357,3 +357,11 @@ func CustodyCountFromRecord(record *enr.Record) (uint64, error) {
 
 	return uint64(csc), nil
 }
+
+func CanSelfReconstruct(numCol uint64) bool {
+	total := params.BeaconConfig().NumberOfColumns
+	// if total is odd, then we need total / 2 + 1 columns to reconstruct
+	// if total is even, then we need total / 2 columns to reconstruct
+	columnsNeeded := total/2 + total%2
+	return numCol >= columnsNeeded
+}